Asexual Reproduction

Transcription

1 SSA #3 Reproduction LT #1 Name What is reproduction? LT #2 Asexual Reproduction What is asexual reproduction? How many parents are required? What are the characteristics of the offspring? LT #3 Asexual Reproduction in Animals Binary Fission Budding Regeneration

2 LT #3 (Continued) Asexual Reproduction in Plants Vegetative Reproduction Bulb Leaf Cutting Rhizomes Runners Tubers LT #4 Advantages Asexual Reproduction Disadvantages

3 LT #5 Sexual Reproduction What is sexual reproduction? How many parents are required? What are the characteristics of the offspring? LT #6 Advantages Sexual Reproduction Disadvantages LT #7 Mitosis Meiosis What is it? What is the purpose of it? What is the product?

4 Practice Your Knowledge 1. Which does NOT result from the process of mitosis in an organism? A) allows the organism to grow larger C) all cells created have the same number of chromosomes B) helps repair damaged tissue in the organism D) forms the sex cells 2. Which of the following is a form of asexual reproduction? A) fertilization B) twinning C) Meiosis D) budding 3. What cells unite in sexual reproduction? A) sperm and fluid B) embryo cells C) sperm and egg D) budding cells 4. After a sperm cell and an egg cell join, the process that forms all the additional cells and all its chromosomes to produce a multi-cellular organism is: A) Mitosis B) mutation C) Meiosis D) budding 5. Each body cell of a chimpanzee has 48 chromosomes. How many chromosomes would normally be present in the sex cell produced by this chimpanzee? A) 48 B) 36 C) 96 D) The cellular process that produces sperm or egg cells with half the number of chromosomes as regular body cells is called: A) Meiosis B) Mutation C) Mitosis D) Binary fission 7. Which of the following occurs during sexual reproduction? A) a bacteria cell splits in half through binary fission B) A starfish loses an arm and regenerates it C) cells from two parents combine D) A strawberry plant makes an identical strawberry plant by producing runners 8. In asexual reproduction, the offspring receives genes from: A) One parent B) two parents C) three parents D) Many organisms 9. What do yeast produced through budding, plants produced from cuttings, and starfish produced through regeneration have in common? A) The offspring of each are produced from one parent B) The offspring have a combination of the genes from multiple parents C) The offspring are more likely to survive & reproduce if the environment suddenly changed D) The offspring are produced from sperm and egg 10.Genetically, how do the offspring of asexual reproduction compare to their parents? A) identical B) a combination C) no similarities D) identical to the father

5 11. Which of the following is a type of sexual reproduction in plants? A) growing a new plant from a cutting C) Growing a new plant from runners B) Growing a new plant from a bulb D) Growing a new plant from a seed 12. Meiosis in a male results in the formation of: A) egg cells B) sperm cells C) liver cells D) brain cells 13. Unicellular organisms such as amoeba, bacteria and paramecium often reproduce quickly, splitting into equal halves, through the type of asexual reproduction called: A) binary fission B) meiosis C) vegetative propagation D) regeneration 14. A fruit fly has 8 chromosomes in each body cell and only 4 chromosomes in its sex cells. How many chromosomes will a fruit fly have in one of its wing cells? A) 8 B) 16 C) 4 D) A type of asexual reproduction where the offspring grows out of the body of the parent and the offspring is smaller than the parent organism is called: A) Binary fission B) rhizomes C) runner D) budding 16. A type of asexual reproduction where the offspring is able to replace missing body parts is called: A) Binary fission B) regeneration C) rhizomes D) budding 17. In plants, stems that grow horizontally above the ground from the parent plant (strawberries), forming nodes where new plants develop is called a/an: A) cutting C) runners B) bulb D) rhizome 18. Fleshy, underground stems (onion) in which new plants develop A) cutting B) bulb C) runners D) rhizomes 19. Swollen, modified roots (potato) in which new plants develop are: A) tubers C) runners B) bulb D) rhizomes 20. Shoots with leaves are taken from the parent plant and when rooted, will grow into a new plant. A) cutting C) runners B) bulb D) rhizomes

6 A scientist observed bacteria cells under the microscope and carefully recorded her observations. 21. What process was the scientist observing? A) Photosynthesis C) sexual reproduction B) Cellular respiration D) asexual reproduction 22. The scientist compared one of the cells at 11:00 a.m. with a photograph of the cell at 10:00 a.m. Which best describes what she found? A) The two cells had different traits B) The two cells shared some traits C) The two cells had identical traits D) The two cells had different learned behaviors 23. Sometimes sexual reproduction causes an organism to develop a new characteristic to the species. Which of the following new characteristics might help a lizard that lives in grassy areas survive? A) Developing a longer tail C) becoming green colored B) becoming color-blind D) developing shorter legs 24. What is an advantage of sexual reproduction over asexual reproduction? A) It requires only one parent and has a higher success rate B) It reproduces many individuals very quickly C) It creates variation in offspring, allowing a greater chance to adapt if the environment suddenly changed. D) It creates identical offspring, reducing the chance of mutations being passed onto the next generation.

7 Match the type of asexual reproduction with the appropriate image. Put the correct capital letter in the answer space provided. 25) 26) 27) A) Tuber B) Bulb C) Runner D) Cutting E) Budding F) Regeneration 28) 29) 30)

8 31. Where is the human body would you find cells undergoing meiosis? 32. How many chromosomes are in each human cell? 33. How many of these chromosomes does the female contribute to her offspring? 34. How many of these chromosomes does the male contribute to his offspring? Use the diagram below to answer questions Identify the sex cells shown at letter A. 36. Identify the sex cells shown at letter B. 37. Identify the reproductive process that is occurring at letter C. 38. Identify the process that is occurring between letter E and F. Grasshopper body cells have 24 chromosomes. 39. How many chromosomes in a grasshopper s sex cell? 40. How many chromosomes in a grasshopper s fertilized egg? 41. In a grasshopper leg cell? Decide if the statement is a asexual or sexual reproduction based on the given advantages or disadvantages. A= asexual reproduction S= sexual reproduction 42) There is no transportation necessary for this type of reproduction. 43) Involves 2 parents 44) The zygote will have a combination of genetic information from both parents. 45) This type of reproduction creates a rapid population growth 46) There is NO genetic diversity 47) Has the ability to adapt to environmental changes 48) There is more time and energy required for this type of reproduction. 49) No mate is needed. 50) Produces only a small population