Cells, DNA, Cell Cycle...Practice

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Cells, DNA, Cell Cycle...Practice"

Transcription

1 Name: Period: Date: Cells, DNA, Cell Cycle...Practice Multiple Choice Identify the choice that best completes the statement or answers the question. Indicate your answer choice with an UPPER CASE letter in the space provided. 1. All of the terms listed below occur during interphase except A. G 1 phase. B. cytokinesis. C. chromosome replication. D. G 2 phase. E. S phase. 2. After the DNA is replicated, and it condenses in prophase, two identical rods of DNA are seen. These are A. chromatids. B. centromeres. C. spindle fibers. D. kinetochores. E. chromatin. 3. Spindle fibers A. are composed of DNA. B. only appear during interphase. C. attach to the ends of chromosomes. D. connect chromosomes to the center of the cell. E. are used to organize and move chromosomes during mitosis. 4. The process in which the cell actually divides is called A. mitosis. B. meiosis. C. cytokinesis. D. actin. E. cell plate formation. 5. Cytokinesis in plant cells differs from cytokinesis in animal cells because A. the contractile protein, actin, is important only in plant cells. B. a contractile ring forms only in plant cells. C. in plant cells, the cell plate must also divide into two parts. D. plant cells have a rigid cell wall. E. there is no difference. 6. Microtubules are A. affected by cancer-fighting chemicals such as Taxol. B. responsible for formation of the contractile ring. C. involved in cell plate formation. D. only built up to make longer and longer microtubules. E. important during interphase of the cell cycle. 7. Special cells found in the gonads that give rise to gametes upon division are called A. germ cells. B. somatic cells. C. stem cells. D. basal cells. E. egg cells. 8. Pairs of chromosomes that are similar in size and genetic composition are A. chromatids. B. diploid. C. haploid. D. chromatin. E. homologous chromosomes. 9. At the end of meiosis I, the resulting two cells are A. identical in all ways. B. genetically identical. C. genetically different. D. hexaploid. E. prepared to enter interphase so the chromosomes can be replicated. 10. If an organism's diploid chromosome number is 18, how many different possible combinations of homologous chromosomes lining up during meiosis exist for the eggs or sperm produced by that organism? A. 9 B. 18 C. 36 D. 128 E Skin cancers typically develop in the A. lower layers of the epidermis. B. upper layers of the dermis. C. upper layers of the epidermis. D. lower layers of the dermis. E. subcutaneous layer. 1

2 Name: 12. Early scientists named the material within the nucleus of a cell when it is not dividing with a term that means "colored material". What is the term? A. chromosomes B. chromatin C. karyotype D. centromere E. chromatid 13. What structure holds the sister chromatids to the spindle fibers? A. kinetochore B. centromere C. chromatin D. cyclin E. MPF 14. If you view a cell in which the genetic material is beginning to be visible as separate bodies, and the nucleoli have disappeared from view (particularly noticeable in plant cells), you may surmise that the cell is in A. telophase. B. anaphase. C. prophase D. metaphase E. interphase. 15. In what phases is the genetic material in the cell correctly referred to as chromatids? A. interphase and telophase B. metaphase and prophase C. anaphase and metaphase D. metaphase and telophase E. interphase and prophase 16. In humans, a gene that has been identified as causing a type of skin cancer is the A. mutant superman. B. sonic hedgehog. C. superhero aardvark. D. superwoman echidna. E. mutant mole rat. 17. At the end of metaphase I, separate. A. homologues B. only the autosomes C. sister chromatids D. centrioles E. tetrads 18. At the beginning of mitosis or meiosis (e.g., after condensation), the recently replicated copies of a chromosome are known as A. homologues. B. only the autosomes. C. sister chromatids. D. centrioles. E. tetrads. 19. Genes are composed of A. DNA. B. proteins. C. chromosomes. D. carbohydrates. E. lipids. 20. The structure of DNA was determined primarily by A. Mendel. B. Watson and Crick. C. Pauling. D. Hershey and Chase. E. Griffith. 21. What step in DNA replication precedes the pairing of complementary bases? A. polymerization of DNA B. separation of the two strands C. joining of the two strands D. mitotic division E. formation of the histone core 22. Which is not true of DNA replication? A. It occurs in the S phase of the cell cycle. B. It functions similarly for all organisms. C. It is semiconservative. D. Both strands are synthesized in one direction only. E. Both strands are synthesized continuously. 23. Errors in the replication of DNA occur approximately once in every base pairs. A B. 100,000 C. 1,000,000 D. 1,000,000,000 E. 1,000,000,000, The most important experimental result that suggested to Watson and Crick that DNA was in the form of a helix was A. the finding of Chargaff that DNA always had equal amounts of A and T and equal amounts of G and C. B. Griffith's results with transformation. C. the discovery that DNA is wound around histone proteins. D. X-ray data from Rosalind Franklin working with Maurice Wilkin. E. understanding DNA replication. 2

3 Name: 25. The two strands of DNA in a DNA double helix A. are identical to each other. B. are connected to each other by covalent chemical bonds. C. both contain nucleotides, but the order of the nucleotides on the two strands is not related. D. are oriented in the same direction. E. are antiparallel to each other. 26. Base pairing A. occurs between identical bases. B. requires hydrogen bonds. C. takes place between sugars and phosphates on the two strands in a helix. D. explains the X-ray results from Rosalind Franklin. E. occurs between A and C. 27. Packaged DNA is referred to as A. chromosomes. B. histones. C. chromatin. D. protein. E. nucleosomes. 28. DNA replication A. occurs in the cytoplasm of the cell. B. does not require proteins. C. occurs in G 1 of interphase. D. takes place in the nucleus of the cell. E. is constantly happening in a cell. 29. DNA replication occurs A. during cell division. B. continuously. C. before cell division. D. only once in the life of the organism. E. only in gametes. 30. If DNA is likened to a ladder, what are the compounds that make up the sides of the ladder? A. phosphates and bases B. phosphates and sugars C. bases only D. phosphates only E. bases and sugars 31. The fact that the two strands composing a DNA molecule are called antiparallel has to do with the orientation of the A. sugar molecules. B. bases. C. phosphate molecules. D. hydrogen bonds. E. sulfide bonds. Matching Match the following examples. A. mitosis B. meiosis C. both 32. Occurs in somatic cells 33. Gives rise to gametes 34. Generally produces 4 daughter cells 35. Requires chromosome replication must be completed beforehand 36. Produces genetically identical daughter cells 3

4 Name: Match the following action with the correct phase. A. metaphase B. telophase C. anaphase ii D. telophase i E. prophase ii F. cytokinesis 37. Sister chromatids start to pull apart. 38. Of the phases listed, this is the first in which the cells are haploid. 39. Chromosomes align at the center of the cell. 40. A diploid number of chromosomes are present at each end of the cell. 41. The cell splits into two daughter cells. 42. G G M 45. S Match the following phases of the cell cycle with the appropriate activity. a. DNA is replicated. b. The cell divides. c. Each organelle divides in half. d. Proteins necessary for mitosis are formed. e. New proteins and cell components are made. Match the following structures with the proper description. A. separate, duplicated structures composed of DNA visible under the microscope B. genetic material that is "unwound" in between cell divisions C. a duplicated strand of DNA held to its duplicate by a centromere D. a proteinaceous band holding duplicate copies of the genetic material E. a structure that holds the sister chromatids to the spindle fibers 46. centromere 47. chromatin 48. chromosome 49. kinetochore 50. chromatid 4

5 Name: 51. G G mitosis 54. S 55. cytokinesis Match the following phases with the proper description. A. a period in which the cell manufactures cellular molecules in preparation for replication of the genetic material B. a period in which the cell prepares for division by producing, among other things, much tubulin C. the actual division of the genetic material D. the actual splitting of the cytoplasm of the two daughter cells E. replication of DNA Match the following steps in DNA replication with the correct descriptive term that either describes the step or describes why the step is necessary. A. RNA starts DNA replication. B. Replication cannot occur if DNA is present as a helix. C. Free nucleotides will form hydrogen bonds with unpaired bases. D. DNA replication must be extremely accurate. E. The new strand is formed from the newly paired bases. F. DNA polymerase can only join nucleotides to one end of a DNA strand. 56. Joining 57. Separation 58. Primer formation 59. Complementary base pairing 60. Continuous and discontinuous replication Match the following terms with their characteristics. A. building block of DNA B. joins nucleotides during DNA replication C. molecule associated with RNA D. cytosine, guanine, adenine, and thymine E. spool of protein associated with DNA 61. DNA polymerase 62. Nucleotide 63. Histone 64. Bases of DNA 5

6 Cells, DNA, Cell Cycle...Practice [Answer Strip] _ B 12. _ E 25. _ B 1. _ A 2. _ E 3. _ A 13. _ C 14. _ B 15. _ B 16. _ B 26. _ C 27. _ D 28. _ C 29. _ C 37. _ E 38. _ A 39. _ B 40. _ F 41. _ B 51. _ A 52. _ C 53. _ E 54. _ D 55. _ C 4. _ D 5. _ A 6. _ A 7. _ A 17. _ C 18. _ A 19. _ B 20. _ B 21. _ B 30. _ A 31. _ E 42. _ D 43. _ B 44. _ A 45. _ E 56. _ B 57. _ A 58. _ C 59. _ F 60. _ E 8. _ C 9. _ E 10. _ E 22. _ D 23. _ D 24. _ A 32. _ B 33. _ B 34. _ C 35. _ A 36. _ D 46. _ B 47. _ A 48. _ E 49. _ C 50. _ B 61. _ A 62. _ E 63. _ D 64. _ A 11.

Exercise 1: Q: B.1. Answer Cell A: 2 Q: B.3. Answer (a) Somatic (body). CELL CYCLE, CELL DIVISION AND STRUCTURE OF CHROMOSOME. Cell B: 4 Q: B.

Exercise 1: Q: B.1. Answer Cell A: 2 Q: B.3. Answer (a) Somatic (body). CELL CYCLE, CELL DIVISION AND STRUCTURE OF CHROMOSOME. Cell B: 4 Q: B. CELL CYCLE, CELL DIVISION AND STRUCTURE OF CHROMOSOME Exercise 1: Q: B.1 Cell A: 2 Cell B: 4 Q: B.2 (a) - Metaphase. (b) - Telophase. (c) - Prophase. (d) - Anaphase. Q: B.3 (a) Somatic (body). (b) Four.

More information

4.1 Cell Division and Genetic Material pg The Cell Theory is a central idea to Biology and it evolved in the 1800 s. The Cell Theory States:

4.1 Cell Division and Genetic Material pg The Cell Theory is a central idea to Biology and it evolved in the 1800 s. The Cell Theory States: 4.1 Cell Division and Genetic Material pg. 160 The Cell Theory is a central idea to Biology and it evolved in the 1800 s. The Cell Theory States: 1. All living things are composed of one or more cells.

More information

The Process of Cell Division. Lesson Overview. Lesson Overview. Cell Growth and Development

The Process of Cell Division. Lesson Overview. Lesson Overview. Cell Growth and Development Lesson Overview Cell Growth and Development Chromosomes The genetic information that is passed on from one generation of cells to the next is carried by chromosomes. Every cell must copy its genetic information

More information

Cell Division CELL DIVISION. Mitosis. Designation of Number of Chromosomes. Homologous Chromosomes. Meiosis

Cell Division CELL DIVISION. Mitosis. Designation of Number of Chromosomes. Homologous Chromosomes. Meiosis Cell Division CELL DIVISION Anatomy and Physiology Text and Laboratory Workbook, Stephen G. Davenport, Copyright 2006, All Rights Reserved, no part of this publication can be used for any commercial purpose.

More information

Cell Growth and Reproduction Module B, Anchor 1

Cell Growth and Reproduction Module B, Anchor 1 Cell Growth and Reproduction Module B, Anchor 1 Key Concepts: - The larger a cell becomes, the more demands the cell places on its DNA. In addition, a larger cell is less efficient in moving nutrients

More information

2. Discrete units of hereditary information consisting of duplicated DNA are called.

2. Discrete units of hereditary information consisting of duplicated DNA are called. LAB TOPIC 7 BSC 2010L (Principles of Biology 1 Laboratory, Professor Chiappone) MITOSIS AND MEIOSIS (Investigating Biology, 7 th edition) PRACTICE QUIZ QUESTIONS 1. DNA is found in structures called. (a)

More information

Name Date. Meiosis Worksheet

Name Date. Meiosis Worksheet Name Date Meiosis Worksheet Identifying Processes On the lines provided, order the different stages of meiosis I THROUGH meiosis II, including interphase in the proper sequence. 1. homologous chromosome

More information

Mitosis and Cytokinesis

Mitosis and Cytokinesis B-2.6 Summarize the characteristics of the cell cycle: interphase (called G1, S, G2); the phases of mitosis (called prophase, metaphase, anaphase, and telophase); and plant and animal cytokinesis. The

More information

BIOL100 Laboratory Assignment 4: Mitosis and Meiosis. Name:

BIOL100 Laboratory Assignment 4: Mitosis and Meiosis. Name: BIOL100 Laboratory Assignment 4: Mitosis and Meiosis Name: Laboratory Objectives After completing this lab topic, you should be able to: 1. Describe the activities of chromosomes and microtubules in the

More information

LAB EXERCISE: Mitosis and Meiosis

LAB EXERCISE: Mitosis and Meiosis LAB EXERCISE: Mitosis and Meiosis Laboratory Objectives After completing this lab topic, you should be able to: 1. Describe the activities of chromosomes and microtubules in the cell cycle, including all

More information

List, describe, diagram, and identify the stages of meiosis.

List, describe, diagram, and identify the stages of meiosis. Meiosis and Sexual Life Cycles In this topic we will examine a second type of cell division used by eukaryotic cells: meiosis. In addition, we will see how the 2 types of eukaryotic cell division, mitosis

More information

BCOR 011, Exam 3. Multiple Choice: Select the best possible answer. Name KEY Section

BCOR 011, Exam 3. Multiple Choice: Select the best possible answer. Name KEY Section BCOR 011, Exam 3 Name KEY Section Multiple Choice: Select the best possible answer. 1. A parent cell divides to form two genetically identical daughter cells in the nuclear process of mitosis. For mitosis

More information

Appendix C DNA Replication & Mitosis

Appendix C DNA Replication & Mitosis K.Muma Bio 6 Appendix C DNA Replication & Mitosis Study Objectives: Appendix C: DNA replication and Mitosis 1. Describe the structure of DNA and where it is found. 2. Explain complimentary base pairing:

More information

Chapter 8 Cell division. Review

Chapter 8 Cell division. Review Chapter 8 Cell division Mitosis/Meiosis Review This spot that holds the 2 chromatid copies together is called a centromere The phase of the cell cycle in which cells stop dividing all together. G 0 Cell

More information

1. When new cells are formed through the process of mitosis, the number of chromosomes in the new cells

1. When new cells are formed through the process of mitosis, the number of chromosomes in the new cells Cell Growth and Reproduction 1. When new cells are formed through the process of mitosis, the number of chromosomes in the new cells A. is half of that of the parent cell. B. remains the same as in the

More information

Mitosis, Meiosis and Gametogenesis

Mitosis, Meiosis and Gametogenesis Mitosis, Meiosis and Gametogenesis Mitosis is the mechanism by which somatic (body) cells in higher organisms replicate & divide. each cell has 2 copies of each of each chromosome, one that is of paternal

More information

From DNA to Protein

From DNA to Protein Nucleus Control center of the cell contains the genetic library encoded in the sequences of nucleotides in molecules of DNA code for the amino acid sequences of all proteins determines which specific proteins

More information

Cell Cycle and Mitosis Review

Cell Cycle and Mitosis Review Cell Cycle and Mitosis Review This spot that holds the 2 chromatid copies together is called a The phase of the cell cycle in which cells stop dividing all together. Cell division in bacteria cells is

More information

Lecture 3 Cell division: mitosis and meiosis

Lecture 3 Cell division: mitosis and meiosis Lecture 3 Cell division: mitosis and meiosis CAMPBELL BIOLOGY Chapter 8 1 The Cell Division Cycle Almost 90% of the cycle is taken up with Interphase during which DNA in the nucleus is replicated Mitosis

More information

SELF-PREPARATION FOR THE BIOLOGY ASSESSMENT TEST MODULE 5: MITOSIS AND MEIOSIS

SELF-PREPARATION FOR THE BIOLOGY ASSESSMENT TEST MODULE 5: MITOSIS AND MEIOSIS SELF-PREPARATION FOR THE BIOLOGY ASSESSMENT TEST MODULE 5: MITOSIS AND MEIOSIS Mitosis and meiosis: Two types of eukaryotic cell division According to the Cell Theory, new cells are created by the division

More information

Meiosis. The form of cell division by which gametes, with half the number of chromosomes, are produced. Diploid (2n) haploid (n)

Meiosis. The form of cell division by which gametes, with half the number of chromosomes, are produced. Diploid (2n) haploid (n) MEIOSIS Meiosis The form of cell division by which gametes, with half the number of chromosomes, are produced. Diploid (2n) haploid (n) Meiosis is sexual reproduction. Two divisions (meiosis I and meiosis

More information

The correct answer is b DNA and protein B. Answer b is correct. When DNA binds with histone proteins it forms chromatin.

The correct answer is b DNA and protein B. Answer b is correct. When DNA binds with histone proteins it forms chromatin. 1. Which of the following is NOT involved in binary fission in prokaryotes? a. Replication of DNA b. Elongation of the cell c. Separation of daughter cells by septum formation d. Assembly of the nuclear

More information

This phase of mitosis is? This phase of mitosis is? - This phase of mitosis is? This phase of mitosis is? Graphic source:

This phase of mitosis is? This phase of mitosis is? - This phase of mitosis is? This phase of mitosis is? Graphic source: 1 2 This phase of mitosis is? This phase of mitosis is? - 3 4 This phase of mitosis is? This phase of mitosis is? 5 6 What are the stages of mitosis in chronological order? This phase of mitosis is? -Anaphase,

More information

Cell Cycle and Mitosis

Cell Cycle and Mitosis Cell Cycle and Mitosis THE CELL CYCLE The cell cycle, or cell-division cycle, is the series of events that take place in a eukaryotic cell between its formation and the moment it replicates itself. These

More information

Lab 6. Cellular Reproduction: Mitosis and Meiosis

Lab 6. Cellular Reproduction: Mitosis and Meiosis Lab 6. Cellular Reproduction: Mitosis and Meiosis Cell Division - Mitosis Sexually-reproducing, multicellular organisms begin life as a single cell, the fertilized egg. This cell, the zygote, through the

More information

Cell Cycle and Mitosis

Cell Cycle and Mitosis Cell Cycle and Mitosis THE CELL CYCLE The cell cycle, or cell-division cycle, is the series of events that take place in a eukaryotic cell between its formation and the moment it replicates itself. These

More information

Meiosis Worksheet. Do you have ALL your parents' chromosomes? Introduction to Meiosis. Haploid vs. Diploid. Overview of Meiosis NAME - PERIOD

Meiosis Worksheet. Do you have ALL your parents' chromosomes? Introduction to Meiosis. Haploid vs. Diploid. Overview of Meiosis NAME - PERIOD Meiosis Worksheet NAME - PERIOD Do you have ALL your parents' chromosomes? No, you only received half of your mother's chromosomes and half of your father's chromosomes. If you inherited them all, you

More information

DNA. Discovery of the DNA double helix

DNA. Discovery of the DNA double helix DNA Replication DNA Discovery of the DNA double helix A. 1950 s B. Rosalind Franklin - X-ray photo of DNA. C. Watson and Crick - described the DNA molecule from Franklin s X-ray. What is DNA? Question:

More information

Chapter 3. Cell Division. Laboratory Activities Activity 3.1: Mock Mitosis Activity 3.2: Mitosis in Onion Cells Activity 3.

Chapter 3. Cell Division. Laboratory Activities Activity 3.1: Mock Mitosis Activity 3.2: Mitosis in Onion Cells Activity 3. Chapter 3 Cell Division Laboratory Activities Activity 3.1: Mock Mitosis Activity 3.2: Mitosis in Onion Cells Activity 3.3: Mock Meiosis Goals Following this exercise students should be able to Recognize

More information

Part II: Process of Meiosis

Part II: Process of Meiosis Part II: Process of Meiosis The process of eukaryotic cell division during which the number of chromosomes is cut in half. Involves Karyokinesis Sequence of two divisions Start with one nucleus End up

More information

Lecture 7 Mitosis & Meiosis

Lecture 7 Mitosis & Meiosis Lecture 7 Mitosis & Meiosis Cell Division Essential for body growth and tissue repair Interphase G 1 phase Primary cell growth phase S phase DNA replication G 2 phase Microtubule synthesis Mitosis Nuclear

More information

DNA Structure and Replication

DNA Structure and Replication Why? DNA Structure and Replication How is genetic information stored and copied? Deoxyribonucleic acid or DNA is the molecule of heredity. It contains the genetic blueprint for life. For organisms to grow

More information

Mitosis and Meiosis. written by: Brianne Bagan Alejandro Corral Dylan Frick Chandler Gallegos

Mitosis and Meiosis. written by: Brianne Bagan Alejandro Corral Dylan Frick Chandler Gallegos Mitosis and Meiosis written by: Brianne Bagan Alejandro Corral Dylan Frick Chandler Gallegos Chapter One: Overview of the cell cycle G1 Phase During the G1 phase or the Gap 1 phase, the protein synthesis

More information

CHROMOSOME STRUCTURE CHROMOSOME NUMBERS

CHROMOSOME STRUCTURE CHROMOSOME NUMBERS CHROMOSOME STRUCTURE 1. During nuclear division, the DNA (as chromatin) in a Eukaryotic cell's nucleus is coiled into very tight compact structures called chromosomes. These are rod-shaped structures made

More information

EXPERIMENT #8 CELL DIVISION: MITOSIS & MEIOSIS

EXPERIMENT #8 CELL DIVISION: MITOSIS & MEIOSIS Introduction Cells, the basic unit of life, undergo reproductive acts to maintain the flow of genetic information from parent to offspring. The processes of mitosis and meiosis are cellular events in which

More information

growth and tissue repair in multicellular organisms (mitosis)

growth and tissue repair in multicellular organisms (mitosis) Cell division: mitosis and meiosis I. Cell division -- introduction - roles for cell division: reproduction -- unicellular organisms (mitosis) growth and tissue repair in multicellular organisms (mitosis)

More information

Worksheet for Morgan/Carter Laboratory #7 Mitosis and Meiosis

Worksheet for Morgan/Carter Laboratory #7 Mitosis and Meiosis Worksheet for Morgan/Carter Laboratory #7 Mitosis and Meiosis Ex. 7-1: MODELING THE CELL CYCLE AND MITOSIS IN AN ANIMAL CELL Lab Study A: Interphase How many pairs of homologous chromosomes are present

More information

Lab 10 Mitosis. Background. Mitosis. Prokaryotic fission. Prophase During prophase, the chromatin. Eukaryotic cell division

Lab 10 Mitosis. Background. Mitosis. Prokaryotic fission. Prophase During prophase, the chromatin. Eukaryotic cell division Lab 10 Mitosis Background Reproduction means producing a new organism from an existing organism. The new offspring must receive hereditary information and enough cytoplasmic material to maintain its own

More information

CELL CYCLE AND CELL DIVISION

CELL CYCLE AND CELL DIVISION 1 CH 10 CELL CYCLE & CELL DIVISION CELL CYCLE AND CELL DIVISION Growth and reproduction are characteristics of living cells and organisms. Cell Cycle The sequence of events by which a cell duplicates its

More information

Mitosis vs. Meiosis. The Somatic Cell Cycle (Mitosis) The somatic cell cycle consists of 3 phases: interphase, m phase, and cytokinesis.

Mitosis vs. Meiosis. The Somatic Cell Cycle (Mitosis) The somatic cell cycle consists of 3 phases: interphase, m phase, and cytokinesis. Mitosis vs. Meiosis In order for organisms to continue growing and/or replace cells that are dead or beyond repair, cells must replicate, or make identical copies of themselves. In order to do this and

More information

The cell cycle, mitosis and meiosis

The cell cycle, mitosis and meiosis The cell cycle, mitosis and meiosis Learning objective This learning material is about the life cycle of a cell and the series of stages by which genetic materials are duplicated and partitioned to produce

More information

Lab 8 Mitosis and Meiosis

Lab 8 Mitosis and Meiosis Lab 8 Mitosis and Meiosis Introduction: All new cells come from previously existing cells. New cells are formed by karyokinesis (the process in cell division that involves replication of the cell s nucleus)

More information

Chapter 12: The Cell Cycle (Mitosis) Cell division is an integral part of the cell cycle

Chapter 12: The Cell Cycle (Mitosis) Cell division is an integral part of the cell cycle Chapter 12: The Cell Cycle (Mitosis) Cell division is an integral part of the cell cycle Concept 12.1: Cell division results in genetically identical daughter cells Most cell division (mitosis) results

More information

The Cell Cycle: Interphase, Mitosis and Cytokinesis

The Cell Cycle: Interphase, Mitosis and Cytokinesis The Cell Cycle: Interphase, Mitosis and Cytokinesis Introduction: You should be able to: Define interphase, mitosis and cytokinesis Describe the cell cycle Discuss the events and significance of mitosis.

More information

The Somatic Cell Cycle

The Somatic Cell Cycle The Somatic Cell Cycle Maternal chromosome Diploid Zygote Diploid Zygote Paternal chromosome MITOSIS MITOSIS Maternal chromosome Diploid organism Diploid organism Paternal chromosome Int terpha ase The

More information

Cells, Mitosis-Meiosis, Photosynthesis-Cellular Respiration Notes F

Cells, Mitosis-Meiosis, Photosynthesis-Cellular Respiration Notes F Cells, Mitosis-Meiosis, Photosynthesis-Cellular Respiration Notes F Chromosomes and Mitosis Vocabulary anaphase centromere chromatid chromatin chromosome gene homologous chromosomes metaphase prophase

More information

Mitosis & Meiosis. Bio 103 Lecture Dr. Largen

Mitosis & Meiosis. Bio 103 Lecture Dr. Largen 1 Mitosis & Meiosis Bio 103 Lecture Dr. Largen 2 Cells arise only from preexisting cells all cells come from cells perpetuation of life based on reproduction of cells referred to as cell division 3 Cells

More information

Part 1: Mitosis & Cytokinesis

Part 1: Mitosis & Cytokinesis Lab 5 - Bio 160 Name: Part 1: Mitosis & Cytokinesis OBJECTIVES Το observe the stages of mitosis in prepared slides of whitefish blastula and onion root tips. Το gain a better understanding of the process

More information

Cell cycle & Mitosis. Cellular Organization of the Genetic Material 2016-06- 13

Cell cycle & Mitosis. Cellular Organization of the Genetic Material 2016-06- 13 Cell cycle & Mitosis Review In unicellular organisms, division of one cell reproduces the entire organism Multicellular organisms depend on cell division for Development from a fertilized cell Growth Repair

More information

Biology. Chapter 10/11

Biology. Chapter 10/11 Biology Chapter 10/11 Interest grabber NOTEBOOK #1 Getting Through Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size

More information

Biology 160 Lab Module 10 Meiosis Activity & Mendelian Genetics

Biology 160 Lab Module 10 Meiosis Activity & Mendelian Genetics Name Biology 160 Lab Module 10 Meiosis Activity & Mendelian Genetics Introduction During your lifetime you have grown from a single celled zygote into an organism made up of trillions of cells. The vast

More information

Chapter 13: Meiosis and Sexual Life Cycles

Chapter 13: Meiosis and Sexual Life Cycles Name Period Chapter 13: Meiosis and Sexual Life Cycles Concept 13.1 Offspring acquire genes from parents by inheriting chromosomes 1. Let s begin with a review of several terms that you may already know.

More information

Cell Division Mitosis and Meiosis

Cell Division Mitosis and Meiosis Cell Division Mitosis and Meiosis students will describe the processes of mitosis and meiosis o define and explain the significance of chromosome number in somatic and sex cells o explain the events of

More information

General Biology 1004 Chapter 8 Lecture Handout, Summer 2005 Dr. Frisby

General Biology 1004 Chapter 8 Lecture Handout, Summer 2005 Dr. Frisby Slide 1 CHAPTER 8 The Cellular Basis of Reproduction and Inheritance PowerPoint Lecture Slides for Essential Biology, Second Edition & Essential Biology with Physiology Presentation prepared by Chris C.

More information

Chapter 8: The Cellular Basis of Reproduction and Inheritance

Chapter 8: The Cellular Basis of Reproduction and Inheritance Chapter 8: The Cellular Basis of Reproduction and Inheritance Introduction Stages of an Organism s Life Cycle: Development: All changes that occur from a fertilized egg or an initial cell to an adult organism.

More information

LAB 8 EUKARYOTIC CELL DIVISION: MITOSIS AND MEIOSIS

LAB 8 EUKARYOTIC CELL DIVISION: MITOSIS AND MEIOSIS LAB 8 EUKARYOTIC CELL DIVISION: MITOSIS AND MEIOSIS Los Angeles Mission College Biology 3 Name: Date: INTRODUCTION BINARY FISSION: Prokaryotic cells (bacteria) reproduce asexually by binary fission. Bacterial

More information

Meiosis is a special form of cell division.

Meiosis is a special form of cell division. Page 1 of 6 KEY CONCEPT Meiosis is a special form of cell division. BEFORE, you learned Mitosis produces two genetically identical cells In sexual reproduction, offspring inherit traits from both parents

More information

Mitosis and Meiosis BRING YOUR TEXT TO LAB!

Mitosis and Meiosis BRING YOUR TEXT TO LAB! Mitosis and Meiosis BRING YOUR TEXT TO LAB! Objectives: 1. To begin to understand the mechanics of cellular Reproduction/Life Cycles and how the process underlies inheritance. 2. To simulate the movement

More information

Unit 2: Tissues, Organs, and Systems. The Cell Cycle

Unit 2: Tissues, Organs, and Systems. The Cell Cycle Unit 2: Tissues, Organs, and Systems The Cell Cycle Cells All living things are made up of one or more cells. An adult human is made up of approximately 100 trillion cells. Cells are the structural and

More information

Multiple Choice Review Mitosis & Meiosis

Multiple Choice Review Mitosis & Meiosis Multiple Choice Review Mitosis & Meiosis 1. Which of the following accurately describes the one of the major divisions of mitosis? a. During the mitotic phase, cells are performing their primary function

More information

Mitosis. Asexual Reproduction. identical to each other and to the parent cell

Mitosis. Asexual Reproduction. identical to each other and to the parent cell Mitosis & Meiosis Mitosis Asexual Reproduction The end result is 2 cells that are genetically identical to each other and to the parent cell from which they formed Occurs in somatic cells (non-gametes)

More information

Chapter 13: Meiosis and Sexual Life Cycles

Chapter 13: Meiosis and Sexual Life Cycles Name Period Concept 13.1 Offspring acquire genes from parents by inheriting chromosomes 1. Let s begin with a review of several terms that you may already know. Define: gene locus gamete male gamete female

More information

2. is a process of nuclear division in which the number of chromosomes in certain cells is halved during gamete formation.

2. is a process of nuclear division in which the number of chromosomes in certain cells is halved during gamete formation. Meiosis 1. P. J. van Beneden proposed that an egg and a sperm, each containing half the complement of chromosomes found in somatic cells, fuse to produce a single cell called a. 2. is a process of nuclear

More information

Chapter 10 Cell Growth and Division

Chapter 10 Cell Growth and Division Chapter Outline Chapter 10 Cell Growth and Division Section 1: Cell Reproduction KEY IDEAS > Why do cells divide? > How is DNA packaged into the nucleus? > How do cells prepare for division? WHY CELLS

More information

CHAPTER 9 CELLULAR REPRODUCTION P. 243-257

CHAPTER 9 CELLULAR REPRODUCTION P. 243-257 CHAPTER 9 CELLULAR REPRODUCTION P. 243-257 SECTION 9-1 CELLULAR GROWTH Page 244 ESSENTIAL QUESTION Why is it beneficial for cells to remain small? MAIN IDEA Cells grow until they reach their size limit,

More information

Chapter 12: The Cell Cycle

Chapter 12: The Cell Cycle Name Period Chapter 12: The Cell Cycle Overview: 1. What are the three key roles of cell division? State each role, and give an example. Key Role Example 2. What is meant by the cell cycle? Concept 12.1

More information

STUDENT ID NUMBER, LAST NAME,

STUDENT ID NUMBER, LAST NAME, EBIO 1210: General Biology 1 Name Exam 3 June 25, 2013 To receive credit for this exam, you MUST bubble in your STUDENT ID NUMBER, LAST NAME, and FIRST NAME No. 2 pencils only You may keep this exam to

More information

Cell Division Mitosis and the Cell Cycle

Cell Division Mitosis and the Cell Cycle Cell Division Mitosis and the Cell Cycle A Chromosome and Sister Chromatids Key Points About Chromosome Structure A chromosome consists of DNA that is wrapped around proteins (histones) and condensed Each

More information

Pre-lab Homework Lab 2: Mitosis and the Cell Cycle

Pre-lab Homework Lab 2: Mitosis and the Cell Cycle Pre-lab Homework Lab 2: Mitosis and the Cell Cycle Name: Date/Lab time: 1. Label the figure with the following phases of the cell cycle (note the position of interphase and mitosis): G 1 G 2 S Anaphase

More information

www.njctl.org PSI Biology Mitosis & Meiosis

www.njctl.org PSI Biology Mitosis & Meiosis Mitosis and Meiosis Mitosis Classwork 1. Identify two differences between meiosis and mitosis. 2. Provide an example of a type of cell in the human body that would undergo mitosis. 3. Does cell division

More information

A. Homologous chromosomes divide in Meiosis l and sister. B. Homologous chromosomes divide in Meiosis ll and sister

A. Homologous chromosomes divide in Meiosis l and sister. B. Homologous chromosomes divide in Meiosis ll and sister SC.912.L.16.17 1) Somatic cells undergo mitosis whereas gamete cells undergo meiosis. Mitosis takes place throughout the lifetime of an organism. What is the biggest difference between these processes?

More information

Sample Questions for Exam 3

Sample Questions for Exam 3 Sample Questions for Exam 3 1. All of the following occur during prometaphase of mitosis in animal cells except a. the centrioles move toward opposite poles. b. the nucleolus can no longer be seen. c.

More information

Eukaryotic Cells and the Cell Cycle

Eukaryotic Cells and the Cell Cycle Eukaryotic Cells and the Cell Cycle Mitosis, Meiosis, & Fertilization Learning Goals: After completing this laboratory exercise you will be able to: 1. Identify the stages of the cell cycle. 2. Follow

More information

Lab: Mitosis & Meiosis

Lab: Mitosis & Meiosis Bio 101 Name Lab: Mitosis & Meiosis OBJECTIVES To observe the stages of mitosis in prepared slides of whitefish blastula and onion root tips. To gain a better understanding of the process of mitosis in

More information

MITOSIS AND MEISOSIS

MITOSIS AND MEISOSIS MITOSIS AND MEISOSIS The two labs dealing with cell division are juxtaposed as they are closely related and yet have some significant differences. Learning to compare and contrast mechanisms is very important

More information

Cell Division. Use Target Reading Skills. This section explains how cells grow and divide.

Cell Division. Use Target Reading Skills. This section explains how cells grow and divide. Cell Processes and Energy Name Date Class Cell Processes and Energy Guided Reading and Study Cell Division This section explains how cells grow and divide. Use Target Reading Skills As you read, make a

More information

1. Why is mitosis alone insufficient for the life cycle of sexually reproducing eukaryotes?

1. Why is mitosis alone insufficient for the life cycle of sexually reproducing eukaryotes? Chapter 13: Meiosis and Sexual Life Cycles 1. Why is mitosis alone insufficient for the life cycle of sexually reproducing eukaryotes? 2. Define: gamete zygote meiosis homologous chromosomes diploid haploid

More information

Answer: 2. Uracil. Answer: 2. hydrogen bonds. Adenine, Cytosine and Guanine are found in both RNA and DNA.

Answer: 2. Uracil. Answer: 2. hydrogen bonds. Adenine, Cytosine and Guanine are found in both RNA and DNA. Answer: 2. Uracil Adenine, Cytosine and Guanine are found in both RNA and DNA. Thymine is found only in DNA; Uracil takes its (Thymine) place in RNA molecules. Answer: 2. hydrogen bonds The complementary

More information

Lecture 11 The Cell Cycle and Mitosis

Lecture 11 The Cell Cycle and Mitosis Lecture 11 The Cell Cycle and Mitosis In this lecture Cell division Chromosomes The cell cycle Mitosis PPMAT Apoptosis What is cell division? Cells divide in order to reproduce themselves The cell cycle

More information

Chapter 12: The Cell Cycle

Chapter 12: The Cell Cycle Name Period Chapter 12: The Cell Cycle Overview: 1. What are the three key roles of cell division? State each role, and give an example. Key Role Reproduction Growth and development Tissue removal Example

More information

11.4 Meiosis. Lesson Objectives. Lesson Summary

11.4 Meiosis. Lesson Objectives. Lesson Summary 11.4 Meiosis Lesson Objectives Contrast the number of chromosomes in body cells and in gametes. Summarize the events of meiosis. Contrast meiosis and mitosis. Describe how alleles from different genes

More information

CELL PROCESSES AND ENERGY

CELL PROCESSES AND ENERGY CHAPTER 5 CELL PROCESSES AND ENERGY SECTION 5 1 The Cell in Its Environment (pages 158-162) This section tells how things move into and out of cells. The Cell Membrane as Gatekeeper (page 158) 1. The cell

More information

List the four phases of mitosis in order. Prophase, Metaphase, Anaphase, Telophase

List the four phases of mitosis in order. Prophase, Metaphase, Anaphase, Telophase List the four phases of mitosis in order Prophase, Metaphase, Anaphase, Telophase Identify and briefly describe each of the parts of the cell cycle. G1 phase, cell growth; S phase, DNA replication; G2

More information

Mitosis. Cellular Reproduction Part I

Mitosis. Cellular Reproduction Part I Mitosis Cellular Reproduction Part I Cells must reproduce, the cell cycle describes how cells reproduce and what regulates reproduction. All somatic cells (non sex cells) go through the cell cycle. It

More information

Mitosis. How do living things grow and repair themselves? Prophase Metaphase Anaphase Telophase. Centriole

Mitosis. How do living things grow and repair themselves? Prophase Metaphase Anaphase Telophase. Centriole Why? Mitosis How do living things grow and repair themselves? Living things must grow and develop. At times they suffer injuries or damage, or cells simply wear out. New cells must be formed for the organism

More information

12.1 The Role of DNA in Heredity

12.1 The Role of DNA in Heredity 12.1 The Role of DNA in Heredity Only in the last 50 years have scientists understood the role of DNA in heredity. That understanding began with the discovery of DNA s structure. In 1952, Rosalind Franklin

More information

Cellular Reproduction In Eukaryotic Cells

Cellular Reproduction In Eukaryotic Cells Cellular Reproduction In Eukaryotic Cells OBJECTIVE: By the end of the exercise you should be able to: 1. Describe the events associated with the cell cycle. 2. Describe the events associated with mitosis.

More information

Mitosis: Student Activity Lesson Plan

Mitosis: Student Activity Lesson Plan : Student Activity Lesson Plan Subject/Strand/Topic: Science Reproduction - Mitosis Grade(s) / Course(s): 9 / SNC 1D, SNC 1P Ontario Expectations: BY1.02, BY1.01 Key Concepts: mitosis, cell division, prophase,

More information

BioSci 2200 General Genetics Problem Set 1 Answer Key Introduction and Mitosis/ Meiosis

BioSci 2200 General Genetics Problem Set 1 Answer Key Introduction and Mitosis/ Meiosis BioSci 2200 General Genetics Problem Set 1 Answer Key Introduction and Mitosis/ Meiosis Introduction - Fields of Genetics To answer the following question, review the three traditional subdivisions of

More information

Mitosis How do living things grow and repair themselves?

Mitosis How do living things grow and repair themselves? Mitosis How do living things grow and repair themselves? Why? Living things must grow and develop. At times they suffer injuries or damage, or cells simply wear out. New cells must be formed for the living

More information

MITOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU

MITOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU MITOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU Mitosis is the process by which a cell duplicates In mitosis, chromosomes in the cell nucleus are separated into two identical sets of chromosomes, each

More information

Mitosis and Meiosis. Part I Mitosis

Mitosis and Meiosis. Part I Mitosis Mitosis and Meiosis Name Date Part I Mitosis It was discovered in 1858, by Rudolf Virchow, that new cells can only arise from previously existing cells. This is done in two ways: mitosis and meiosis. Body

More information

Asexual - in this case, chromosomes come from a single parent. The text makes the point that you are not exact copies of your parents.

Asexual - in this case, chromosomes come from a single parent. The text makes the point that you are not exact copies of your parents. Meiosis The main reason we have meiosis is for sexual reproduction. It mixes up our genes (more on that later). But before we start to investigate this, let's talk a bit about reproduction in general:

More information

II. DNA Deoxyribonucleic Acid Located in the nucleus of the cell Codes for your genes

II. DNA Deoxyribonucleic Acid Located in the nucleus of the cell Codes for your genes HEREDITY = passing on of characteristics from parents to offspring How?...DNA! I. DNA, Chromosomes, Chromatin, and Genes DNA = blueprint of life (has the instructions for making an organism) Chromatin=

More information

DNA Structure and Replication. Chapter Nine

DNA Structure and Replication. Chapter Nine DNA Structure and Replication Chapter Nine 2005 We know: DNAis the hereditary material DNAhas a double helix structure Made of four bases; A,T,C,G Sugar-Phosphate backbone DNAreplication is semi-conservative

More information

The Huntington Library, Art Collections, and Botanical Gardens

The Huntington Library, Art Collections, and Botanical Gardens The Huntington Library, Art Collections, and Botanical Gardens Rooting for Mitosis Overview Students will fix, stain, and make slides of onion root tips. These slides will be examined for the presence

More information

If and when cancer cells stop dividing, they do so at random points, not at the normal checkpoints in the cell cycle.

If and when cancer cells stop dividing, they do so at random points, not at the normal checkpoints in the cell cycle. Cancer cells have escaped from cell cycle controls Cancer cells divide excessively and invade other tissues because they are free of the body s control mechanisms. Cancer cells do not stop dividing when

More information

Lecture 2: Mitosis and meiosis

Lecture 2: Mitosis and meiosis Lecture 2: Mitosis and meiosis 1. Chromosomes 2. Diploid life cycle 3. Cell cycle 4. Mitosis 5. Meiosis 6. Parallel behavior of genes and chromosomes Basic morphology of chromosomes telomere short arm

More information

5. The cells of a multicellular organism, other than gametes and the germ cells from which it develops, are known as

5. The cells of a multicellular organism, other than gametes and the germ cells from which it develops, are known as 1. True or false? The chi square statistical test is used to determine how well the observed genetic data agree with the expectations derived from a hypothesis. True 2. True or false? Chromosomes in prokaryotic

More information

The Structure, Replication, and Chromosomal Organization of DNA

The Structure, Replication, and Chromosomal Organization of DNA Michael Cummings Chapter 8 The Structure, Replication, and Chromosomal Organization of DNA David Reisman University of South Carolina History of DNA Discoveries Friedrich Miescher Isolated nuclein from

More information