Chapter 2: Traits and How They Change

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Chapter 2: Traits and How They Change"

Transcription

1 Table of Contents Chapter 2: Traits and How They Change Section 2: Genetics Heredity x Genetics Mendel s experiments Punnett Square

2 REVIEW: Genes are sections of DNA Genes have different Alleles A gene will code for a trait Each allele will code for a variation of a trait We inherit 2 alleles One allele comes from the father and another from the mother

3 1)What is Heredity? 2)What is genetics? Heredity is the passing of traits from parents to offspring. ** Genetics is the branch of Biology that studies genes, heredity, and the variation of inherited traits in living organisms.

4 Dominant X Recessive Dominant allele will show its effects on the phenotype whenever present in the genotype Recessive Allele will show its effects on the phenotype only if 2 of them are present in the genotype ( inherited from both parents)

5 Ex: Cat fur short fur is dominant over long fur A cat will have long fur if it inherits both alleles for long fur one from the father and one from the mother If the cat inherits one allele for long fur and one for short fur, the cat will have short fur.

6 Mendel Austrian monk, lived in the 1800s Father of Genetics because he developed 3 basic principles of genetics Studied traits in Pea plants they reproduce quickly possible to observe the inheritance of traits in a short period of time

7 Traits studied by Mendel

8 Mendel s Principles of Heredity 1 st Principle of Dominance 2 nd Principle of Segregation 3 rd Principle of Independent Assortment

9 Genetics Mendel s Principle of Dominance Traits are determined by different factors. Each trait is determined by at least two factors. Today we call factors, genes One factor is dominant over the other

10 Mendel s Principle of Segregation Mendel also concluded that each parent passes only one of the alleles for a trait to its offspring. This explains variation that exists among the offspring of parents. Each organism have an unique combination of alleles.

11 Mendel s 3 rd principle : Law of Independent assortment Alleles for one trait have no effect on how alleles for another trait are inherited

12 Vocabulary: Homozygous and heterozygous Homozygous an organism that have two alleles for a trait that are the same is called homozygous Heterozygous an organism that have two different alleles for a trait

13 Homozygous can also be called purebred Heterozygous can also be called hybrid

14 **Representing alleles Letters are used to represent alleles Capital letters are used for dominant alleles and lowercase letters are used for recessive alleles We use the first letter of the dominant allele Ex: short and tall

15 **Representing alleles Ex: Tall is dominant and short is recessive TT homozygous or purebred = tall tt homozygous or purebred = short Tt heterozygous or hybrid = tall (it has the dominant allele) Example : Brown eyes dominant over green eyes

16 Punnett Square Tool to predict the genotype and phenotype of an offspring Worksheet How to use a Punnett Square?

17 Mendel s experiments : P - Parental generation F1 generation - the result of 1 st crossing F2 generation - result of the 2nd crossing ****No matter what trait he was working with, Mendel observed that there was a pattern in the inheritance of traits.

18 Discovering the Patterns: EX: Tall and short plants tall is dominant Solve the following crosses using the Punnett Square: -Cross two homozygous for the dominant trait -Cross two homozygous for the recessive trait -Cross two heterozygous

19 Discovering the Patterns: RESULTS ARE ALWAYS THE SAME -Cross two homozygous for the dominant trait = 100% with the dominant trait -Cross two homozygous for the recessive trait = 100% with the recessive trait -Cross two heterozygous = 75% with the dominant trait and 25% with the recessive trait

20 Practicing Punnett Square - Pea plants with different seed color Dominant yellow seed - genotype? Recessive green seed genotype? 1)Homozygous yellow x homozygous green 2)Heterozygous yellow x heterozygous yellow 3)green x green 4)Heterozygous yellow x green 5)Homozygous yellow x homozygous yellow Identify Genotypes and phenotypes for all crosses

GENETIC CROSSES. Monohybrid Crosses

GENETIC CROSSES. Monohybrid Crosses GENETIC CROSSES Monohybrid Crosses Objectives Explain the difference between genotype and phenotype Explain the difference between homozygous and heterozygous Explain how probability is used to predict

More information

11.1 The Work of Gregor Mendel

11.1 The Work of Gregor Mendel 11.1 The Work of Gregor Mendel Lesson Objectives Describe Mendel s studies and conclusions about inheritance. Describe what happens during segregation. Lesson Summary The Experiments of Gregor Mendel The

More information

Heredity. Sarah crosses a homozygous white flower and a homozygous purple flower. The cross results in all purple flowers.

Heredity. Sarah crosses a homozygous white flower and a homozygous purple flower. The cross results in all purple flowers. Heredity 1. Sarah is doing an experiment on pea plants. She is studying the color of the pea plants. Sarah has noticed that many pea plants have purple flowers and many have white flowers. Sarah crosses

More information

A trait is a variation of a particular character (e.g. color, height). Traits are passed from parents to offspring through genes.

A trait is a variation of a particular character (e.g. color, height). Traits are passed from parents to offspring through genes. 1 Biology Chapter 10 Study Guide Trait A trait is a variation of a particular character (e.g. color, height). Traits are passed from parents to offspring through genes. Genes Genes are located on chromosomes

More information

Mendelian and Non-Mendelian Heredity Grade Ten

Mendelian and Non-Mendelian Heredity Grade Ten Ohio Standards Connection: Life Sciences Benchmark C Explain the genetic mechanisms and molecular basis of inheritance. Indicator 6 Explain that a unit of hereditary information is called a gene, and genes

More information

Name: Class: Date: ID: A

Name: Class: Date: ID: A Name: Class: _ Date: _ Meiosis Quiz 1. (1 point) A kidney cell is an example of which type of cell? a. sex cell b. germ cell c. somatic cell d. haploid cell 2. (1 point) How many chromosomes are in a human

More information

Mendel s work. Biology CLIL lesson. Istituto tecnico industriale A. MALIGNANI Udine. Docente:Prof. Annamaria Boasso

Mendel s work. Biology CLIL lesson. Istituto tecnico industriale A. MALIGNANI Udine. Docente:Prof. Annamaria Boasso Istituto tecnico industriale A. MALIGNANI Udine Docente:Prof. Annamaria Boasso Modulo di genetica realizzato per l applicazione in classi seconde. Durata: 4 ore Biology CLIL lesson Mendel s work Objectives

More information

Ex) A tall green pea plant (TTGG) is crossed with a short white pea plant (ttgg). TT or Tt = tall tt = short GG or Gg = green gg = white

Ex) A tall green pea plant (TTGG) is crossed with a short white pea plant (ttgg). TT or Tt = tall tt = short GG or Gg = green gg = white Worksheet: Dihybrid Crosses U N I T 3 : G E N E T I C S STEP 1: Determine what kind of problem you are trying to solve. STEP 2: Determine letters you will use to specify traits. STEP 3: Determine parent

More information

7A The Origin of Modern Genetics

7A The Origin of Modern Genetics Life Science Chapter 7 Genetics of Organisms 7A The Origin of Modern Genetics Genetics the study of inheritance (the study of how traits are inherited through the interactions of alleles) Heredity: the

More information

Heredity - Patterns of Inheritance

Heredity - Patterns of Inheritance Heredity - Patterns of Inheritance Genes and Alleles A. Genes 1. A sequence of nucleotides that codes for a special functional product a. Transfer RNA b. Enzyme c. Structural protein d. Pigments 2. Genes

More information

GENETIC TRAITS IN HARRY POTTER DOMAIN 3-GENETICS

GENETIC TRAITS IN HARRY POTTER DOMAIN 3-GENETICS Learning Outcomes: Students will be able to: Define the basic genetic terms and concepts DNA, chromosome, gene, allele, homozygous, heterozygous, recessive and dominant genes, genotype, phenotype, and

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

Incomplete Dominance and Codominance

Incomplete Dominance and Codominance Name: Date: Period: Incomplete Dominance and Codominance 1. In Japanese four o'clock plants red (R) color is incompletely dominant over white (r) flowers, and the heterozygous condition (Rr) results in

More information

Bio EOC Topics for Cell Reproduction: Bio EOC Questions for Cell Reproduction:

Bio EOC Topics for Cell Reproduction: Bio EOC Questions for Cell Reproduction: Bio EOC Topics for Cell Reproduction: Asexual vs. sexual reproduction Mitosis steps, diagrams, purpose o Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis Meiosis steps, diagrams, purpose

More information

Punnett Square: Monohybird Crosses

Punnett Square: Monohybird Crosses Punnett Squares A Punnett square is a mathematical device used by geneticists to show combinations of gametes and to predict offspring ratios. There are a few fundamental concepts of Punnett squares that

More information

CCR Biology - Chapter 7 Practice Test - Summer 2012

CCR Biology - Chapter 7 Practice Test - Summer 2012 Name: Class: Date: CCR Biology - Chapter 7 Practice Test - Summer 2012 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A person who has a disorder caused

More information

Complex Inheritance. Mendel observed monogenic traits and no linked genes It s not usually that simple.

Complex Inheritance. Mendel observed monogenic traits and no linked genes It s not usually that simple. Complex Inheritance Mendel observed monogenic traits and no linked genes It s not usually that simple. Other Types of Inheritance Incomplete Dominance The phenotype of the heterozygote is intermediate

More information

c. Law of Independent Assortment: Alleles separate and do not have an effect on another allele.

c. Law of Independent Assortment: Alleles separate and do not have an effect on another allele. Level Genetics Review KEY Describe the 3 laws that Gregor Mendel established after working with pea plants. a. Law of Dominance: states that the effect of a recessive allele is not observed when a dominant

More information

What about two traits? Dihybrid Crosses

What about two traits? Dihybrid Crosses What about two traits? Dihybrid Crosses! Consider two traits for pea: Color: Y (yellow) and y (green) Shape: R (round) and r (wrinkled)! Each dihybrid plant produces 4 gamete types of equal frequency.

More information

Coats and Genes Genetic Traits in Cattle

Coats and Genes Genetic Traits in Cattle Coats and Genes Genetic Traits in Cattle Objective The student will read about heredity and explore genetic traits in cattle. Background Agriculturists are pioneers in the study of genetics and heredity.

More information

INTRODUCTION TO GENETICS USING TOBACCO (Nicotiana tabacum) SEEDLINGS

INTRODUCTION TO GENETICS USING TOBACCO (Nicotiana tabacum) SEEDLINGS INTRODUCTION TO GENETICS USING TOBACCO (Nicotiana tabacum) SEEDLINGS By Dr. Susan Petro Based on a lab by Dr. Elaine Winshell Nicotiana tabacum Objectives To apply Mendel s Law of Segregation To use Punnett

More information

Mendelian Genetics. I. Background

Mendelian Genetics. I. Background Mendelian Genetics Objectives 1. To understand the Principles of Segregation and Independent Assortment. 2. To understand how Mendel s principles can explain transmission of characters from one generation

More information

LAB : PAPER PET GENETICS. male (hat) female (hair bow) Skin color green or orange Eyes round or square Nose triangle or oval Teeth pointed or square

LAB : PAPER PET GENETICS. male (hat) female (hair bow) Skin color green or orange Eyes round or square Nose triangle or oval Teeth pointed or square Period Date LAB : PAPER PET GENETICS 1. Given the list of characteristics below, you will create an imaginary pet and then breed it to review the concepts of genetics. Your pet will have the following

More information

HEREDITY (B) In domestic cats, the gene for Tabby stripes (T) is dominant over the gene for no stripes (t)

HEREDITY (B) In domestic cats, the gene for Tabby stripes (T) is dominant over the gene for no stripes (t) GENETIC CROSSES In minks, a single gene controls coat color. The allele for a brown (B) coat is dominant to the allele for silver-blue (b) coats. 1. A homozygous brown mink was crossed with a silverblue

More information

Terms: The following terms are presented in this lesson (shown in bold italics and on PowerPoint Slides 2 and 3):

Terms: The following terms are presented in this lesson (shown in bold italics and on PowerPoint Slides 2 and 3): Unit B: Understanding Animal Reproduction Lesson 4: Understanding Genetics Student Learning Objectives: Instruction in this lesson should result in students achieving the following objectives: 1. Explain

More information

edtpa: Task 1 Secondary Science

edtpa: Task 1 Secondary Science PART A - About the School Where You Are Teaching a. In what type of school do you teach? Middle School: High School: High School 9-12 Other (please describe): Urban: Suburban: Suburban school setting Rural:

More information

Chapter 9 Patterns of Inheritance

Chapter 9 Patterns of Inheritance Bio 100 Patterns of Inheritance 1 Chapter 9 Patterns of Inheritance Modern genetics began with Gregor Mendel s quantitative experiments with pea plants History of Heredity Blending theory of heredity -

More information

MANDELIAN GENETICS. Crosses that deviate from Mandelian inherintance

MANDELIAN GENETICS. Crosses that deviate from Mandelian inherintance MANDELIAN GENETICS Crosses that deviate from Mandelian inherintance Explain codominant alleles. TO THE STUDENTS Calculate the genotypic and phenotypic ratio (1:2:1). Explain incomplete dominant alleles.

More information

Problems 1-6: In tomato fruit, red flesh color is dominant over yellow flesh color, Use R for the Red allele and r for the yellow allele.

Problems 1-6: In tomato fruit, red flesh color is dominant over yellow flesh color, Use R for the Red allele and r for the yellow allele. Genetics Problems Name ANSWER KEY Problems 1-6: In tomato fruit, red flesh color is dominant over yellow flesh color, Use R for the Red allele and r for the yellow allele. 1. What would be the genotype

More information

The correct answer is c A. Answer a is incorrect. The white-eye gene must be recessive since heterozygous females have red eyes.

The correct answer is c A. Answer a is incorrect. The white-eye gene must be recessive since heterozygous females have red eyes. 1. Why is the white-eye phenotype always observed in males carrying the white-eye allele? a. Because the trait is dominant b. Because the trait is recessive c. Because the allele is located on the X chromosome

More information

Mendelian Inheritance & Probability

Mendelian Inheritance & Probability Mendelian Inheritance & Probability (CHAPTER 2- Brooker Text) January 31 & Feb 2, 2006 BIO 184 Dr. Tom Peavy Problem Solving TtYy x ttyy What is the expected phenotypic ratio among offspring? Tt RR x Tt

More information

Name: 4. A typical phenotypic ratio for a dihybrid cross is a) 9:1 b) 3:4 c) 9:3:3:1 d) 1:2:1:2:1 e) 6:3:3:6

Name: 4. A typical phenotypic ratio for a dihybrid cross is a) 9:1 b) 3:4 c) 9:3:3:1 d) 1:2:1:2:1 e) 6:3:3:6 Name: Multiple-choice section Choose the answer which best completes each of the following statements or answers the following questions and so make your tutor happy! 1. Which of the following conclusions

More information

Biology 1406 Exam 4 Notes Cell Division and Genetics Ch. 8, 9

Biology 1406 Exam 4 Notes Cell Division and Genetics Ch. 8, 9 Biology 1406 Exam 4 Notes Cell Division and Genetics Ch. 8, 9 Ch. 8 Cell Division Cells divide to produce new cells must pass genetic information to new cells - What process of DNA allows this? Two types

More information

Genetics 1. Defective enzyme that does not make melanin. Very pale skin and hair color (albino)

Genetics 1. Defective enzyme that does not make melanin. Very pale skin and hair color (albino) Genetics 1 We all know that children tend to resemble their parents. Parents and their children tend to have similar appearance because children inherit genes from their parents and these genes influence

More information

Baby Lab. Class Copy. Introduction

Baby Lab. Class Copy. Introduction Class Copy Baby Lab Introduction The traits on the following pages are believed to be inherited in the explained manner. Most of the traits, however, in this activity were created to illustrate how human

More information

Figure S1 Clicker questions and their associated learning objectives and Bloom s level

Figure S1 Clicker questions and their associated learning objectives and Bloom s level Figure S1 Clicker questions and their associated learning objectives and Bloom s level Mitosis and Meiosis questions Q1: Which of the following events does not occur during mitosis? A.Breakdown of the

More information

Variations on a Human Face Lab

Variations on a Human Face Lab Variations on a Human Face Lab Introduction: Have you ever wondered why everybody has a different appearance even if they are closely related? It is because of the large variety or characteristics that

More information

Bio 102 Practice Problems Mendelian Genetics and Extensions

Bio 102 Practice Problems Mendelian Genetics and Extensions Bio 102 Practice Problems Mendelian Genetics and Extensions Short answer (show your work or thinking to get partial credit): 1. In peas, tall is dominant over dwarf. If a plant homozygous for tall is crossed

More information

Genetics Module B, Anchor 3

Genetics Module B, Anchor 3 Genetics Module B, Anchor 3 Key Concepts: - An individual s characteristics are determines by factors that are passed from one parental generation to the next. - During gamete formation, the alleles for

More information

2 GENETIC DATA ANALYSIS

2 GENETIC DATA ANALYSIS 2.1 Strategies for learning genetics 2 GENETIC DATA ANALYSIS We will begin this lecture by discussing some strategies for learning genetics. Genetics is different from most other biology courses you have

More information

Key Questions. How is evolution defined in genetic terms?

Key Questions. How is evolution defined in genetic terms? Getting Started Objectives 17.1.1 Define evolution in genetic terms. 17.1.2 Identify the main sources of genetic variation in a population. 17.1.3 State what determines the number of phenotypes for a trait.

More information

Chapter 16 Evolution of Populations. 16.1 Genes and Variation Biology Mr. Hines

Chapter 16 Evolution of Populations. 16.1 Genes and Variation Biology Mr. Hines Chapter 16 Evolution of Populations 16.1 Genes and Variation Biology Mr. Hines Figure 1-21 Levels of Organization Section 1-3 Levels of organization Biosphere Ecosystem The part of Earth that contains

More information

You and Your Blood Packet #3

You and Your Blood Packet #3 You and Your Blood Packet #3 SC.7.L.16.2 AA Determining the probabilities for genotype and phenotype combinations using Punnett Squares and pedigrees. Purpose: to determine the blood type of a third generation

More information

7 th Grade Life Science Name: Miss Thomas & Mrs. Wilkinson Lab: Superhero Genetics Due Date:

7 th Grade Life Science Name: Miss Thomas & Mrs. Wilkinson Lab: Superhero Genetics Due Date: 7 th Grade Life Science Name: Miss Thomas & Mrs. Wilkinson Partner: Lab: Superhero Genetics Period: Due Date: The editors at Marvel Comics are tired of the same old characters. They re all out of ideas

More information

If you crossed a homozygous, black guinea pig with a white guinea pig, what would be the phenotype(s)

If you crossed a homozygous, black guinea pig with a white guinea pig, what would be the phenotype(s) Biological Principles Name: In guinea pigs, black hair (B) is dominant to white hair (b). Homozygous black guinea pig White guinea pig Heterozygous black guinea pig Genotype Phenotype Why is there no heterozygous

More information

DNA Determines Your Appearance!

DNA Determines Your Appearance! DNA Determines Your Appearance! Summary DNA contains all the information needed to build your body. Did you know that your DNA determines things such as your eye color, hair color, height, and even the

More information

B2 5 Inheritrance Genetic Crosses

B2 5 Inheritrance Genetic Crosses B2 5 Inheritrance Genetic Crosses 65 minutes 65 marks Page of 55 Q. A woman gives birth to triplets. Two of the triplets are boys and the third is a girl. The triplets developed from two egg cells released

More information

Chapter 14: Mendel and the Gene Idea

Chapter 14: Mendel and the Gene Idea Name Period Chapter 14: Mendel and the Gene Idea If you have completed a first-year high school biology course, some of this chapter will serve as a review for the basic concepts of Mendelian genetics.

More information

Genetics with a Smile

Genetics with a Smile Teacher Notes Materials Needed: Two coins (penny, poker chip, etc.) per student - One marked F for female and one marked M for male Copies of student worksheets - Genetics with a Smile, Smiley Face Traits,

More information

240Tutoring Life Science Study Material

240Tutoring Life Science Study Material 240Tutoring Life Science Study Material This information is a sample of the instructional content and practice questions found on the 240Tutoring GACE Early Childhood Education. This information is meant

More information

somatic cell egg genotype gamete polar body phenotype homologous chromosome trait dominant autosome genetics recessive

somatic cell egg genotype gamete polar body phenotype homologous chromosome trait dominant autosome genetics recessive CHAPTER 6 MEIOSIS AND MENDEL Vocabulary Practice somatic cell egg genotype gamete polar body phenotype homologous chromosome trait dominant autosome genetics recessive CHAPTER 6 Meiosis and Mendel sex

More information

Biology Final Exam Study Guide: Semester 2

Biology Final Exam Study Guide: Semester 2 Biology Final Exam Study Guide: Semester 2 Questions 1. Scientific method: What does each of these entail? Investigation and Experimentation Problem Hypothesis Methods Results/Data Discussion/Conclusion

More information

LAB 11 Natural Selection (version 2)

LAB 11 Natural Selection (version 2) LAB 11 Natural Selection (version 2) Overview In this laboratory you will demonstrate the process of evolution by natural selection by carrying out a predator/prey simulation. Through this exercise you

More information

How do populations evolve?... Are there any trends?...

How do populations evolve?... Are there any trends?... How do populations evolve?... Are there any trends?... Gene pool: all of the genes of a population Allele frequency: the percentage of any particular allele in a gene pool A population in which an allele

More information

C1. A gene pool is all of the genes present in a particular population. Each type of gene within a gene pool may exist in one or more alleles.

C1. A gene pool is all of the genes present in a particular population. Each type of gene within a gene pool may exist in one or more alleles. C1. A gene pool is all of the genes present in a particular population. Each type of gene within a gene pool may exist in one or more alleles. The prevalence of an allele within the gene pool is described

More information

2 18. If a boy s father has haemophilia and his mother has one gene for haemophilia. What is the chance that the boy will inherit the disease? 1. 0% 2

2 18. If a boy s father has haemophilia and his mother has one gene for haemophilia. What is the chance that the boy will inherit the disease? 1. 0% 2 1 GENETICS 1. Mendel is considered to be lucky to discover the laws of inheritance because 1. He meticulously analyzed his data statistically 2. He maintained pedigree records of various generations he

More information

Saffiyah Y. Manboard Biology Instructor Seagull Alternative High School Saffiyah.manboard@browardschools.com

Saffiyah Y. Manboard Biology Instructor Seagull Alternative High School Saffiyah.manboard@browardschools.com The Effect of Discovery Learning through Biotechnology on the Knowledge and Perception of Sickle Cell Anemia and It s Genetics on Lower Income Students Saffiyah Y. Manboard Biology Instructor Seagull Alternative

More information

17. A testcross A.is used to determine if an organism that is displaying a recessive trait is heterozygous or homozygous for that trait. B.

17. A testcross A.is used to determine if an organism that is displaying a recessive trait is heterozygous or homozygous for that trait. B. ch04 Student: 1. Which of the following does not inactivate an X chromosome? A. Mammals B. Drosophila C. C. elegans D. Humans 2. Who originally identified a highly condensed structure in the interphase

More information

LAB 9: Genetics Take-Home Lab

LAB 9: Genetics Take-Home Lab LAB 9: Genetics Take-Home Lab The science of genetics touches every aspect of our lives. Agriculture, industry, medicine, criminology, conservation, materials science and many other fields employ the concepts

More information

Bio 101 Section 001: Practice Questions for First Exam

Bio 101 Section 001: Practice Questions for First Exam Do the Practice Exam under exam conditions. Time yourself! MULTIPLE CHOICE: 1. The substrate fits in the of an enzyme: (A) allosteric site (B) active site (C) reaction groove (D) Golgi body (E) inhibitor

More information

HOW TO SOLVE GENETICS PROBLEMS

HOW TO SOLVE GENETICS PROBLEMS HOW TO SOLVE GENETICS PROBLEMS 1. Read the problem. 2. Determine what traits are dominant and which are recessive. Often you must marshal background knowledge to do this which may not be explicitly mentioned

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

Mendelian Genetics in Drosophila

Mendelian Genetics in Drosophila Mendelian Genetics in Drosophila Lab objectives: 1) To familiarize you with an important research model organism,! Drosophila melanogaster. 2) Introduce you to normal "wild type" and various mutant phenotypes.

More information

Hardy-Weinberg Equilibrium Problems

Hardy-Weinberg Equilibrium Problems Hardy-Weinberg Equilibrium Problems 1. The frequency of two alleles in a gene pool is 0.19 (A) and 0.81(a). Assume that the population is in Hardy-Weinberg equilibrium. (a) Calculate the percentage of

More information

Genetics Copyright, 2009, by Dr. Scott Poethig, Dr. Ingrid Waldron, and Jennifer Doherty Department of Biology, University of Pennsylvania 1

Genetics Copyright, 2009, by Dr. Scott Poethig, Dr. Ingrid Waldron, and Jennifer Doherty Department of Biology, University of Pennsylvania 1 Genetics Copyright, 2009, by Dr. Scott Poethig, Dr. Ingrid Waldron, and Jennifer Doherty Department of Biology, University of Pennsylvania 1 We all know that children tend to resemble their parents in

More information

PRACTICE PROBLEMS - PEDIGREES AND PROBABILITIES

PRACTICE PROBLEMS - PEDIGREES AND PROBABILITIES PRACTICE PROBLEMS - PEDIGREES AND PROBABILITIES 1. Margaret has just learned that she has adult polycystic kidney disease. Her mother also has the disease, as did her maternal grandfather and his younger

More information

Why Is He Different from Both Parents? The Genetics of ABO Blood Types

Why Is He Different from Both Parents? The Genetics of ABO Blood Types Why Is He Different from Both Parents? The Genetics of ABO Blood Types by Jun Liang, Science Department, Borough of Manhattan Community College / City University of New York William J. Rice, Simons Electron

More information

Edexcel GCSE Biology/Science Unit B1: Influences on Life Higher Tier Time: 1 hour 5BI1H/01 You must have: Instructions black t Fill in the boxes all

Edexcel GCSE Biology/Science Unit B1: Influences on Life Higher Tier Time: 1 hour 5BI1H/01 You must have: Instructions black t Fill in the boxes all Write your name here Surname Other names Edexcel GCSE Centre Number Biology/Science Unit B1: Influences on Life Monday 5 November 2012 Morning Time: 1 hour You must have: Calculator, ruler Candidate Number

More information

Phenotypes and Genotypes of Single Crosses

Phenotypes and Genotypes of Single Crosses GENETICS PROBLEM PACKET- Gifted NAME PER Phenotypes and Genotypes of Single Crosses Use these characteristics about plants to answer the following questions. Round seed is dominant over wrinkled seed Yellow

More information

Biology 1406 - Notes for exam 5 - Population genetics Ch 13, 14, 15

Biology 1406 - Notes for exam 5 - Population genetics Ch 13, 14, 15 Biology 1406 - Notes for exam 5 - Population genetics Ch 13, 14, 15 Species - group of individuals that are capable of interbreeding and producing fertile offspring; genetically similar 13.7, 14.2 Population

More information

Summary. 16 1 Genes and Variation. 16 2 Evolution as Genetic Change. Name Class Date

Summary. 16 1 Genes and Variation. 16 2 Evolution as Genetic Change. Name Class Date Chapter 16 Summary Evolution of Populations 16 1 Genes and Variation Darwin s original ideas can now be understood in genetic terms. Beginning with variation, we now know that traits are controlled by

More information

Plastic Egg Genetics. Introduction. Learning Objectives. Materials. Instructional Process. Next Generation Science Standards (NGSS)

Plastic Egg Genetics. Introduction. Learning Objectives. Materials. Instructional Process. Next Generation Science Standards (NGSS) Plastic Egg Genetics Introduction In this lesson, students will determine the phenotype and genotype of imaginary parent organisms and predict their offspring using s Grade Level: 6-8 Time Needed: 30 to

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

MCAS Biology. Review Packet

MCAS Biology. Review Packet MCAS Biology Review Packet 1 Name Class Date 1. Define organic. THE CHEMISTRY OF LIFE 2. All living things are made up of 6 essential elements: SPONCH. Name the six elements of life. S N P C O H 3. Elements

More information

Heredity and Prenatal Development: Chapter 3

Heredity and Prenatal Development: Chapter 3 Genetics 1 DEP 4053 Christine L. Ruva, Ph.D. Heredity and Prenatal Development: Chapter 3 PRINCIPLES OF HEREDITARY TRANSMISSION Genotype Phenotype Chromosomes: in the nucleus of the cell store and transmit

More information

Lesson Plan: GENOTYPE AND PHENOTYPE

Lesson Plan: GENOTYPE AND PHENOTYPE Lesson Plan: GENOTYPE AND PHENOTYPE Pacing Two 45- minute class periods RATIONALE: According to the National Science Education Standards, (NSES, pg. 155-156), In the middle-school years, students should

More information

Human Blood Types: Codominance and Multiple Alleles. Codominance: both alleles in the heterozygous genotype express themselves fully

Human Blood Types: Codominance and Multiple Alleles. Codominance: both alleles in the heterozygous genotype express themselves fully Human Blood Types: Codominance and Multiple Alleles Codominance: both alleles in the heterozygous genotype express themselves fully Multiple alleles: three or more alleles for a trait are found in the

More information

Key Questions. How many sets of genes are found in most adult organisms?

Key Questions. How many sets of genes are found in most adult organisms? Chromosome Number Meiosis THINK ABOUT IT As geneticists in the early 1900s applied Mendel s principles, they wondered where genes might be located. They expected genes to be carried on structures inside

More information

AP: LAB 8: THE CHI-SQUARE TEST. Probability, Random Chance, and Genetics

AP: LAB 8: THE CHI-SQUARE TEST. Probability, Random Chance, and Genetics Ms. Foglia Date AP: LAB 8: THE CHI-SQUARE TEST Probability, Random Chance, and Genetics Why do we study random chance and probability at the beginning of a unit on genetics? Genetics is the study of inheritance,

More information

Plastic Egg Genetics

Plastic Egg Genetics Plastic Egg Genetics Grade level: 6-12 Subject: Life Sciences, Genetics Duration: one class period Group size: up to 32 students Setting: classroom Content Standards: California Science Content Standard

More information

Variations on a Human Face Donna Mae Jablecki

Variations on a Human Face Donna Mae Jablecki SCIENCE EXPERIMENTS ON FILE Revised Edition 4.11-1 Variations on a Human Face Donna Mae Jablecki Topic Genetics Time 60 to 90 minutes! Safety Please click on the safety icon to view the safety precautions.

More information

Can receive blood from: * I A I A and I A i o Type A Yes No A or AB A or O I B I B and I B i o Type B No Yes B or AB B or O

Can receive blood from: * I A I A and I A i o Type A Yes No A or AB A or O I B I B and I B i o Type B No Yes B or AB B or O Genetics of the ABO Blood Groups written by J. D. Hendrix Learning Objectives Upon completing the exercise, each student should be able: to explain the concept of blood group antigens; to list the genotypes

More information

SCIENTIFIC INQUIRY. Ask a Question After learning background information, create questions that you hope to find the answers to.

SCIENTIFIC INQUIRY. Ask a Question After learning background information, create questions that you hope to find the answers to. SCIENTIFIC INQUIRY Perform Experiments Test your hypothesis to see if it works. Formulate a Hypothesis Make a guess based on the background information as to what the answer might be. Ask a Question After

More information

5. What blood type is considered the universal donor? What is the universal recipient? EXPLAIN! Blood Typing Lab. Introduction:

5. What blood type is considered the universal donor? What is the universal recipient? EXPLAIN! Blood Typing Lab. Introduction: Blood Typing Lab Introduction: There are four basic blood types: A, B, AB and O. The letters A and/or B indicate that a person s blood contains the A protein or the B protein (or both if the blood type

More information

9.1: Mechanisms of Evolution and Their Effect on Populations pg. 350-359

9.1: Mechanisms of Evolution and Their Effect on Populations pg. 350-359 9.1: Mechanisms of Evolution and Their Effect on Populations pg. 350-359 Key Terms: gene flow, non-random mating, genetic drift, founder effect, bottleneck effect, stabilizing selection, directional selection

More information

Two copies of each autosomal gene affect phenotype.

Two copies of each autosomal gene affect phenotype. SECTION 7.1 CHROMOSOMES AND PHENOTYPE Study Guide KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits. VOCABULARY carrier sex-linked gene X chromosome inactivation

More information

Bio 102 Practice Problems Mendelian Genetics: Beyond Pea Plants

Bio 102 Practice Problems Mendelian Genetics: Beyond Pea Plants Bio 102 Practice Problems Mendelian Genetics: Beyond Pea Plants Short answer (show your work or thinking to get partial credit): 1. In four-o'clock flowers, red flower color (R) is incompletely dominant

More information

Chapter 21 Active Reading Guide The Evolution of Populations

Chapter 21 Active Reading Guide The Evolution of Populations Name: Roksana Korbi AP Biology Chapter 21 Active Reading Guide The Evolution of Populations This chapter begins with the idea that we focused on as we closed Chapter 19: Individuals do not evolve! Populations

More information

Fancy Fish: Gene Frequency Grade Ten

Fancy Fish: Gene Frequency Grade Ten Ohio Standards Connection: Life Sciences Benchmark H Describe a foundation of biological evolution as the change in gene frequency of a population over time. Explain the historical and current scientific

More information

The Making of the Fittest: Natural Selection in Humans

The Making of the Fittest: Natural Selection in Humans OVERVIEW MENDELIN GENETIC, PROBBILITY, PEDIGREE, ND CHI-QURE TTITIC This classroom lesson uses the information presented in the short film The Making of the Fittest: Natural election in Humans (http://www.hhmi.org/biointeractive/making-fittest-natural-selection-humans)

More information

CHROMOSOMES AND INHERITANCE

CHROMOSOMES AND INHERITANCE SECTION 12-1 REVIEW CHROMOSOMES AND INHERITANCE VOCABULARY REVIEW Distinguish between the terms in each of the following pairs of terms. 1. sex chromosome, autosome 2. germ-cell mutation, somatic-cell

More information

BIO 184 Page 1 Spring 2013 NAME VERSION 1 EXAM 3: KEY. Instructions: PRINT your Name and Exam version Number on your Scantron

BIO 184 Page 1 Spring 2013 NAME VERSION 1 EXAM 3: KEY. Instructions: PRINT your Name and Exam version Number on your Scantron BIO 184 Page 1 Spring 2013 EXAM 3: KEY Instructions: PRINT your Name and Exam version Number on your Scantron Example: PAULA SMITH, EXAM 2 VERSION 1 Write your name CLEARLY at the top of every page of

More information

Determining Acceptance of the 9:3:3:1 Ratio in Fruit Fly Crosses Using the Chi Squared Test

Determining Acceptance of the 9:3:3:1 Ratio in Fruit Fly Crosses Using the Chi Squared Test Determining Acceptance of the 9:3:3:1 Ratio in Fruit Fly Crosses Using the Chi Squared Test Abstract In this experiment we set out to determine whether or not two different fruit fly crosses fit the 9:3:3:1

More information

Test Two Study Guide

Test Two Study Guide Test Two Study Guide 1. Describe what is happening inside a cell during the following phases (pictures may help but try to use words): Interphase: : Consists of G1 / S / G2. Growing stage, cell doubles

More information

CHEMISTRY. c. What is the relationship between mass and volume? d. How is density related to buoyancy? (Why do things float or sink?

CHEMISTRY. c. What is the relationship between mass and volume? d. How is density related to buoyancy? (Why do things float or sink? OGT questions by topic PHYSICAL SCIENCE CHEMISTRY 1. Properties of Matter a. What are mass, volume, and density? b. How are they measured? c. What is the relationship between mass and volume? d. How is

More information

Microevolution: The mechanism of evolution

Microevolution: The mechanism of evolution Microevolution: The mechanism of evolution What is it that evolves? Not individual organisms Populations are the smallest units that evolve Population: members of a species (interbreeding individuals and

More information

Cystic Fibrosis Webquest Sarah Follenweider, The English High School 2009 Summer Research Internship Program

Cystic Fibrosis Webquest Sarah Follenweider, The English High School 2009 Summer Research Internship Program Cystic Fibrosis Webquest Sarah Follenweider, The English High School 2009 Summer Research Internship Program Introduction: Cystic fibrosis (CF) is an inherited chronic disease that affects the lungs and

More information

A and B are not absolutely linked. They could be far enough apart on the chromosome that they assort independently.

A and B are not absolutely linked. They could be far enough apart on the chromosome that they assort independently. Name Section 7.014 Problem Set 5 Please print out this problem set and record your answers on the printed copy. Answers to this problem set are to be turned in to the box outside 68-120 by 5:00pm on Friday

More information

NATURAL SELECTION AND GENE FREQUENCY

NATURAL SELECTION AND GENE FREQUENCY NATURAL SELECTION AND GENE FREQUENCY BY WOLFGANG RUBI CATALAN, MARNELLE MAC DULA, LIANNE UMALI, ERICA WILEY, & CHRIS YOUNG Student ID # s: WHAT IS THAT? Natural selection is a key mechanism of evolution.

More information

GENETICS AND HEREDITY

GENETICS AND HEREDITY Page No.1 GENETICS Genetics is the science which deals with the mechanisms responsible for similarities and differences among closely related species. The term genetic was coined by W.Batesmanin 1905.

More information