Download Meiosis Take Home Test This is due Monday before the tardy bell

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Meiosis Take Home Test
This is due Monday before the tardy bell, any late tests will receive a 50% point deduction!
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. The number of chromosomes in a gamete is represented by the symbol
a. Z.
c. N.
b. X.
d. Y.
2. If an organism’s diploid number is 12, its haploid number is
a. 12.
c. 24.
b. 6.
d. 3.
3. Gametes have
a. homologous chromosomes.
b. twice the number of chromosomes found in body cells.
c. two sets of chromosomes.
d. one allele for each gene.
4. Gametes are produced by the process of
a. mitosis.
c. crossing-over.
b. meiosis.
d. replication.
Figure 11–3
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5. What is shown in Figure 11–3?
a. independent assortment
c. crossing-over
b. anaphase I of meiosis
d. replication
6. Chromosomes form tetrads during
a. prophase I of meiosis.
c. interphase.
b. metaphase I of meiosis.
d. anaphase II of meiosis.
7. What happens between meiosis I and meiosis II that reduces the number of chromosomes?
a. Crossing-over occurs.
c. Replication occurs twice.
b. Metaphase occurs.
d. Replication does not occur.
8. Unlike mitosis, meiosis results in the formation of
a. diploid cells.
c. 2N daughter cells.
b. haploid cells.
d. body cells.
9. Unlike mitosis, meiosis results in the formation of
a. two genetically identical cells.
c. four genetically identical cells.
b. four genetically different cells.
d. two genetically different cells.
____ 10. Crossing-over rarely occurs in mitosis, unlike meiosis. Which of the following is the likely reason?
a. Chromatids are not involved in mitosis.
b. Tetrads rarely form during mitosis.
c. A cell undergoing mitosis does not have homologous chromosomes.
d. There is no prophase during mitosis.
Modified True/False
Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the
sentence or statement true.
____ 11. If an organism has 16 chromosomes in each of its egg cells, the organism’s diploid number is 32.
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____ 12. Mitosis results in two cells, whereas meiosis results in one cell. _________________________
Completion
Complete each sentence or statement.
13. An organism’s gametes have ____________________ the number of chromosomes found in the
organism’s body cells.
14. Crossing-over occurs during the stage of meiosis called ____________________.
Short Answer
15. How many sets of chromosomes are in a diploid cell?
16. Define homologous chromosomes.
17. What happens to the number of chromosomes per cell during meiosis?
18. How many “n” doe cells in mitosis start with? End with?
19. How many “n” does a cell in meiosis start with? End with?
20. What is the function of a cyclin?
21. What is another name for “2n”?
22.
What is another name for “1n”?
23-27. On next page.
Figure 11–6
23. Interpreting Graphics In Figure 11–6, what is the structure labeled X in stage A?
24. Interpreting Graphics In Figure 11–6, during which stage might new allele combinations form? Identify
the stage.
25. Inferring If the stages shown in Figure 11–6 are taking place in a female animal, how many eggs will
result from stage G? Explain your answer.
26. Interpreting Graphics List the stages in Figure 11–6 in which the cells are 2N and those in which the
cells are N.
27. Inferring In Figure 11–6, in which stage does each cell have a single copy of each gene? Identify the
stage.