1. Mitosis and Meiosis Review

2. Cancer affects
a. humans only.
b. multicellular organisms only.
c. unicellular organisms only.
d. multicellular and unicellular organisms.

3. When during the cell cycle is a cell’s DNA replicated?
a. G1 phase
b. S phase
c. G2 phase
d. M phase

4. During which phase in the cell cycle does mitosis happen?
a. G1 phase
b. M phase
c. G2 phase
d. S phase

5. The structure labeled A in Figure 10–1 is called the
a. centromere.
b. sister chromatid.
c. centriole.
d. spindle.

6. The structures labeled B in Figure 10–1 are called
a. centromeres.
b. sister chromatids.
c. centrioles.
d. spindles.

7. One difference between cell division in plant cells and in animal cells is that plant cells have
a. centrioles.
b. a cell plate.
c. centromeres.
d. chromatin.

8. An advantage of sexual reproduction over asexual reproduction is that sexual reproduction
a. takes less time.
b. provides genetic diversity.
c. requires more time.
d. produces identical offspring.

9. 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.

10. The farther apart two genes are located on a chromosome, the
a. less likely they are to be inherited together.
b. more likely they are to be linked.
c. less likely they are to assort independently.
d. less likely they are to be separated by crossing-over.

11. . Gametes are produced by the process of
a. mitosis.
b. crossing-over.
c. meiosis.
d. replication.

12. What is shown in the figure ?
a. independent assortment
b. crossing-over
c. anaphase I of meiosis
d. replication

13. What is formed at the end of meiosis?
a. two genetically identical cells
b. four genetically identical cells
c. four genetically different cells
d. two genetically different cells

14. As a cell becomes larger, its
A. Volume increases faster than its surface area
B. surface area increases faster than its volume
C. Volume increases, but its surface area stays the same
D. Surface area stays the same, but its volume increases

15. All of the following are problems that growth causes for cells EXCEPT
A. more demands on DNA
B. excess oxygen
C. obtaining enough food
D. Expelling wastes

16. Cancer is a disorder in which some cells have lost the ability to control their
A. size
B. spindle fibers
C. growth rate
D. surface area

17. Cyclins are a family of closely related proteins that
A. regulate the cell cycle
B. produce p53
C. cause cancer
D. work to heal wounds