Cell Growth And Division Worksheet (Page 2 of 4) in pdf

Cell Growth And Division Worksheet Page 2

11. Gene mutations that result in cancer often cause the

a. Overproduction of growth

c. Activation of control proteins

factors

that slow or stop the cell cycle

b. Underproduction of growth

d. Both a and c

factors

12. Which one of the following statements about mitosis is false?

a. During prophase, the sister chromatids are clearly seen, the nuclear envelope

breaks up, and the mitotic spindle begins to form.

b. Toward the end of prophase, the sister chromatids replicate again, but remain

attached to each other.

c. During metaphase, the chromosomes line up in the middle of the mitotic spindle.

d. At the start of anaphase, the sister chromatids are pulled apart and start to

move toward opposite spindle poles.

e. Telophase is like the opposite of prophase: The nuclear envelope reforms, the

chromosomes uncoil, and the spindle disappears.

13. The most dangerous property of cancer cells is that they

a. Divide slowly

d. Do not divide by mitosis

b. Spread throughout the body

e. Do not live very long

c. Form tumors

14. Which one of the following can reduce your risk of developing cancer?

a. Smoking

b. Overexposure to the sun

c. Exercising

d. Eating a low fiber, high fat diet

Complete each statement by writing the correct term or phrase in the space

provided.

→

15. The sequence above represents the ___________________ ___________________.

16. The S phase in the sequence represents the phase in which ___________________

___________________ occurs.

17. Phases G

, S, and G

in the sequence above are collectively called

___________________ .

Cell Growth And Division Worksheet Page 2