What are chromosomes? When do they form? 7. Identify the chromatids and the centromere of a chromosome.

8. List the phases of mitosis.

9. What happens during prophase of mitosis?

10. During which phase of mitosis do sister chromatids separate?

11. Describe what happens during cytokinesis in animal cells.

12. What are three types of asexual reproduction?

13. Define gamete and zygote. What number of chromosomes does each have?

14. What happens during fertilization?

15. Outline the phases of meiosis.