Chapter 11 Meiosis Review

1.     

Chapter 11 Meiosis Review

1.      What is meiosis?

 

2.      Name three things that happen during meiosis that increase a species’ genetic diversity.

 

3.       What is the most important thing to happen during interphase of meiosis?

 

4.       How is prophase I of meiosis different from prophase of mitosis?

 

5.      What is a tetrad? When during meiosis do tetrads first form? Why is it referred to as a tetrad?

 

6.      What is crossing over?  Why is crossing over important?

 

7.      How is metaphase I of meiosis different from metaphase of mitosis?

 

8.      What is independent assortment?

 

9.      Are the chromosomes haploid or diploid during metaphase I? Are the chromosomes singled or doubled during metaphase I?

 

10.  How is anaphase I of meiosis different from anaphase of mitosis?

 

11.  Are the chromosomes haploid or diploid during anaphase I? Are the chromosomes singled or doubled during anaphase I?

 

12.  Why doesn’t another interphase happen before the second meiotic division?

 

13.  Are the chromosomes haploid or diploid during metaphase II? Are the chromosomes singled or doubled during metaphase II?

 

 

14.  Are the chromosomes haploid or diploid during anaphase II? Are the chromosomes singled or doubled during anaphase II?

 

 

15.  What is the end result of meiosis?

 

16.  Define haploid?  Diploid?

 

17.  Why is it important that our gametes are haploid?

 

18.  What is random fertilization?

 

19.  Name the five types of chromosomal mutations.

 

20.  Describe what happens in a deletion. How does this make the chromosome look in a karyotype analysis?

 

21.  Describe what happens in a duplication. How does this make the chromosome look in a karyotype analysis?

 

22.  Describe what happens in an inversion.

 

23.  Describe what happens during a translocation.

 

24.  Describe what happens during non-disjunction.

 

25.  Non-disjunction results in a change in the number of chromosomes. Name the two possible outcomes of non-disjunction.

 

26.  What does a monosomy look like in a karyotype analysis?

 

27.  What does a trisomy look like in a karyotype analysis?

 

 

Visit the following sites: 

http://www.lewport.wnyric.org/JWANAMAKER/animations/meiosis.html

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