Mitosis/Meiosis Review Sheet Name ______

The Cell Cycle

1. Label the diagram below with the phases of the cell cycle.

2. Based on the following descriptions, name the phase from the

cell cycle.

a. Sister chromatids separate and start to move apart.

b. The cytoplasm tears apart. The nuclear membrane is intact.

Chromosomes are no longer visible.

c. Chromosomes line up in the middle of the cell. Each

chromosome is connected to a spindle fiber.

d. This phase cannot be seen. The cell grows, synthesizes

more DNA(replication), and grows more.

e. Nuclear membranes start to reform, the nucleus tears apart.

f. Mitosis begins. The chromosomes become visible,

centrioles separate, spindles form, nuclear envelope breaks

down.

3. What are three conclusions that were made on cell division control based on the experiment depicted below?

4. What protein regulates the cell cycle?

5. What organism reproduces through binary fission?

Mitosis

6. Mitosis is the division of the ______.

7. Cytokinesis is the division of the ______.

8. a. What shape are the chromosomes during prophase?

b. What shape are the chromosomes during metaphase?

c. What shape are the chromosomes during anaphase?

d. What shape are the chromosomes during telophase?

9. Name the chromosomal structures in the figure

to the right.

10. a. What is a gene?

b. What does it determine?

11. What is a chromosome?

1. ______

A.______

B.______

C.______

D.______

i. ______

a. ______

b. ______

c. ______

d. ______

ii. ______

2. a. ______

b. ______

c. ______

d. ______

e. ______

f. ______

3. a. ______

______

b. ______

______

c. ______

______

4. ______

5. ______

6. ______

7. ______

8. a. ______

b. ______

c. ______

d. ______

9. A. ______

B. ______

10. a. ______

b. ______

11. ______

12. a. How many chromosomes do our cells have before

mitosis?

b. How many chromosomes do our cells have at the end of

mitosis?

Meiosis

13. What type of cells undergo meiosis?

14. a. How many chromosomes do our cells have before

meiosis?

b. How many chromosomes do our cells have after

meiosis?

15. a. 2N represents a cell that is ______

b. N represents a cell that is ______

16. Meiosis results in how many gametes?

17. How many copies of each gene do the gametes have?

18. a. What male organ produces sperm?

b. What female organ produces an ovum (egg)?

19. When do tetrads form in meiosis?

20. a. Are the chromosomes (to the right) homologous?

b. If yes, what makes them

homologous? If no, why are they

not homologous?

21. What phenomenon is responsible for the genetic diversity in our world?

22. In between which phases, in meiosis, do cells change from being diploid to haploid?

23. Is there an interphase between Meiosis I and Meiosis II?

24. Define a stem cell.

25. What is a zygote?

26. What are the three main types of stem cells?

27. What leads to cancer?

28. List the three internal growth regulators.

29. What are differences between a benign and malignant tumor?

30. What is a clear margin?

12. a. _____

b. _____

13. ______

14. a. _____

b. _____

15. a. _____

b. _____

16. ______

17. ______

18. a. ______

b. ______

19. ______

20. a. ______

b. ______

______

21. ______

22. In between ______and

______.

23. ______

24. ______

25. ______

26. ______

______

27. ______

28. ______

29. ______

______

30. ______