1

Meiosis and Genetic Variation Review

Sections 6.1, 6.2, and 6.3

2

• What is the process called that produces gametes?

3

• Where in the body are germ cells found?

4

• What word describes two chromosomes that always exist as a homologous pair in a cell?

5

• A cell that is diploid and created by mitosis is what type of cell?

6

• How many nuclear divisions take place during meiosis?

7

• How many nuclear divisions take place during mitosis?

8

• Name at least two ways that meiosis is different from mitosis?

9

• In what phase of meiosis do homologous chromosomes line up at random down the equator of the cell?

10

• In what phase of meiosis do sister chromatids separate?

11

• In what phase of meiosis does crossing over take place?

12

• What is the major difference between interphase 1 (the interphase that takes place before meiosis 1) and interphase 2 (the interphase that takes place between meiosis 1 and meiosis 2?

13

• What are at least two differences between a gamete and a somatic cell?

14

• In which part of meiosis does the reduction in the number of chromosomes, from diploid to haploid, take place?

15

• How many daughter cells does meiosis 2 produce?

16

• What are polar bodies?

17

• How many eggs result from a female germ cell?

18

• What is the result of gametogenesis?

19

• What are at least two differences between meiosis 1 and meiosis 2?

20

• When we say genes are linked, what does that mean?

21

• What happens during crossing over?

22

• How does crossing over increase genetic variation?

23

• In what kind of cell does crossing over take place?

24

• What is independent assortment of chromosomes?

25

• What is the difference between phenotype and genotype?

• How are they related to one another?

26

• What percent of your genes do you share with your nieces and nephews?

27

• How does independent assortment increase genetic variation?