1. Meiosis Review

2. Gametes are made during what cell process?
What are gametes?
Sex Cells
Male Sex Cells?
Sperm
Female Sex Cells?
Eggs
Gametes are made during what cell process?
Meiosis
Sperm & eggs cells come together during the process called____________?
Fertilization

3. What is the diploid number for a human body cell?
46 chromosomes
What is the haploid number for a human sperm or egg cell?
23 chromosomes

4. If an organisms diploid number is 78 chromosome, what is its haploid number?
39 chromosomes

5. What event is being shown below?
Crossing-over
Crossing-over would most likely occur during which stage of the cell cycle in Meiosis?
Prophase I – when homologous chromosomes line up in pairs.

6. What is the name of this stage in Meiosis? Describe what is happening?

7. What is the name of this stage in Meiosis? Describe what is happening?

8. During Prophase 1, what is the event taking place below?

9. What is the name of this stage in Meiosis? Describe what is happening?

10. What is the name given to the chromosomes line up in the middle of the cell in groups of 4 chromatids (2 pairs of homologous chromosomes) ?

11. What is the name of this stage in Meiosis? Describe what is happening?

12. What is the name of this stage in Meiosis? Describe what is happening?

13. What is the name of this stage in Meiosis? Describe what is happening?
Prophase 2

14. What is the name of this stage in Meiosis? Describe what is happening?

15. What is the name of this stage in Meiosis? Describe what is happening?

16. What is the name of this stage in Meiosis? Describe what is happening?

17. What is the name of this stage in Meiosis. Are they diploid or haploid
What is the name of this stage in Meiosis? Are they diploid or haploid? Are these cells identical or different?