6. Which two purposes does mitosis serve in humans?
A. Synthesis of Proteins
B. Replacement of dead cells
C. Elimination of DNS Mutations
D. Repair damaged cells
E. Reproduction of organism
B. Replacement of dead cells
D. Repair damaged cells
11. Which is single-celled?
a. a bean
b. a beet
c. a blueberry
d. a bacterium
d. a bacterium
16. Study the Punnett square below. The dominant gene for a widow's peak is W; the recessive gene is w. Which two genotype combinations could result in this offspring combination?

a. Ww and Ww b. WW and WW
c. Ww and ww d. WW and Ww
d. WW and Ww
2. What is a purpose of cell division?
a. repair of a cell's genes
b. transport of chemical signals
c. storage of wastes
d. replacement of older cells
d. replacement of older cells
7. Which is a purpose of mitosis?
a. growing tissues
b. making energy
c. capturing sunlight
d. fixing nitrogen
a. growing tissues
12. Which statement about cells is true?
a. Cells make up all living things.
b. Animals have more cells than plants.
c. Plant cells are the same as animal cells.
d. Non-living matter has more cells than living matter.
a. Cells make up all living things.
17. Blood Type A = IA
Blood Type B = IB Blood Type O = i
What is the probability that their offspring will have blood type O?

a. 0% b. 25% c. 50% d. 100%
a. 0%
3. What is a purpose of cell division?
a. making energy for cell activities
b. communicating a cell's health
c. repair of damaged tissues
d. replacement of a cell membrane
c. repair of damaged tissues
8. What is a purpose of mitosis in multicellular organisms?
a. production of sugars
b. replacement of dead cells
c. exchange of gases
d. reproduction of the organism
b. replacement of dead cells
13. Tony needs to identify different organisms in a sample of pond water.
Which is an appropriate tool for viewing small organisms?
a. micrometer
b. graduated cylinder
c. microscope
d. pH probe
c. microscope
18. Blood Type A = IA
Blood Type B = IB Blood Type O = i
What is the probability that their offspring will have blood type O?

a. 0% b. 25% c. 50% d. 100%
b. 25%
4. Which is the best example of cell division for the purpose of reproduction?
a. algae cells dividing
b. bone cells dividing
c. brain cells dividing
d. skin cells dividing
a. algae cells dividing
9. What is the purpose of mitosis in unicellular organisms?
a. repair of damaged organelles
b. reproduction of the organism
c. communication between organelles
d. destruction of foreign invaders
b. reproduction of the organism
14. Which two are functions of the nucleus?
a. controlling what enters and leaves a cell
b. protecting DNA
c. producing energy
d. making cytoplasm
e. directing cellular activities
b. protecting DNA
e. directing cellular activities
19. Shiloh's mother carries the A and O blood-type alleles. His father carries two copies of the O blood-type alleles.
Which genotypes might Shiloh have?
a. AO or OO b. AA, AO, or OO
c. AA or AO d. AA, AB, or BB
a. AO or OO
5. Which is the best example of cell division for the purpose of repair?
a. Cells of an embryo multiply after fertilization.
b. Lung cells multiply as lungs grows larger.
c. New skin forms at the site of a wound.
d. Bacterial cells divide in a moist environment.
c. New skin forms at the site of a wound.
10. Which is a purpose of mitosis?
a. making new cells
b. packaging nutrients
c. moving water across membranes
d. reducing the number of chromosomes
a. making new cells
15. Which two are functions of the cell wall?
a. giving the cell a rigid shape
b. capturing sunlight
c. moving the cell
d. protecting the cell membrane
e. providing energy for the cell
a, giving the cell a rigid shape
d. protecting the cell membrane
20. What is the probability that their offspring will have the genotype FF?

a. 0% b. 25% c. 50% d. 100%
b. 25%