ap lectureguide13

AP Biology: CHAPTER 13

MEIOSIS AND SEXUAL LIFE CYCLES

1. The key features of the two versions of reproduction.

a. Asexual Reproduction ____________________________________________________

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b. Sexual Reproduction _____________________________________________________

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2. What is the role of meiosis in sexual reproduction?

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3. What is a karyotype?

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4. Identify several things the can be seen with a karyotype?

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5. Label the diagram of the human lifecycle. Include the chromosome numbers.

6. Compare the products of mitosis with meiosis.

a. Mitosis ________________________________________________________________

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b. Meiosis ________________________________________________________________

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7. Meiosis is said to be a double division. Explain.

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8. Meiosis is an important source of variation. Define and describe how each of the following

contributes to variation within a species.

a. Independent Assortment __________________________________________________

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b. Random fertilization ______________________________________________________

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c. Crossing Over __________________________________________________________

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9. Draw a pair of homologous chromosomes and indicate a crossing over event and the products.

 

 

10. List the significant differences between mitosis and meiosis.

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11. What is the significance of genetic variation and natural selection?

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