1. Meiosis and Genetic Variation Review Sections 6.1, 6.2, and 6.3 1

2. What is the process called that produces gametes? 2

3. Where in the body are germ cells found? 3

4. What word describes two chromosomes that always exist as a homologous pair in a cell? 4

5. A cell that is diploid and created by mitosis is what type of cell? 5

6. How many nuclear divisions take place during meiosis? 6

7. How many nuclear divisions take place during mitosis? 7

8. Name at least two ways that meiosis is different from mitosis? 8

9. In what phase of meiosis do homologous chromosomes line up at random down the equator of the cell? 9

10. In what phase of meiosis do sister chromatids separate? 10

11. In what phase of meiosis does crossing over take place? 11

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? 12

13. What are at least two differences between a gamete and a somatic cell? 13

14. In which part of meiosis does the reduction in the number of chromosomes, from diploid to haploid, take place? 14

15. How many daughter cells does meiosis 2 produce? 15

16. What are polar bodies? 16

17. How many eggs result from a female germ cell? 17

18. What is the result of gametogenesis? 18

19. What are at least two differences between meiosis 1 and meiosis 2? 19

20. When we say genes are linked, what does that mean? 20

21. What happens during crossing over? 21

22. How does crossing over increase genetic variation? 22

23. In what kind of cell does crossing over take place? 23

24. What is independent assortment of chromosomes? 24

25. What is the difference between phenotype and genotype? How are they related to one another? 25

26. What percent of your genes do you share with your nieces and nephews? 26

27. How does independent assortment increase genetic variation? 27