25 Jun What type of cell undergoes meiosis
Question
Review: Meiosis
Name ______________________________
1. What type of cell undergoes meiosis? Gamete cells or Somatic cells
2. What are homologous chromosomes?
3. For each of the following state if the cell is haploid or diploid.
Sperm cell =
Liver cell =
Egg cell =
Stomach cell =
4. If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism? _________
5. During meiosis, the chromosome number:
a) is doubled
b) is reduced
c) remains the same
d) becomes diploid
6. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes.
7. How many times do cells divide during meiosis? _______
8. What are the stages of meiosis called?
Meiosis I: _________________, _____________________, _________________, ____________________/cytokinesis
Meiosis II: _________________, _____________________, _________________, ____________________/cytokinesis
9. Draw a tetrad: What phase do you first see this in?
10. Which of the following best describe the term “crossing over”?
a.) An exchange of information between two homologous chromosomes
b.) A molecular interaction between two sister chromatids
c.) A molecular interaction between two nonsister chromatids
d.) A separation of two sister chromatids
Figure 2
11. Crossingover can be found in the stage of
a.) Prophase I b) Prophase II
c) Anaphase I d) Anaphase II
12. Which letter in figure #2 represents meiosis? Why?
13. Which letter in figure #2 represents mitosis? Why?
14. Is DNA copied before Meiosis II? _______
15. How many cells form at the end of Meiosis II and how many chromosomes do they contain? _____________, _____________
16. A sperm cell is a (gamete, zygote), and is (haploid, diploid).
17. When a sperm cell and an ovum/egg merge, they undergo the process of fertilization, and give rise to a (gamete, zygote), which is (haploid, diploid).
18. What is the ultimate goal/purpose of mitosis? What term do we use to describe the new cells?
1
19.. What is the difference between chromosomes, chromatids?
20. How are DNA and chromosomes related?
21. What is the difference between a haploid, diploid, and zygote?
Haploid:
Diploid:
Zygote:
22. How does Meiosis differ from Mitosis?
23. What does Meiosis create? Haploids or Diploid? Somatic cells or gametes?
24. What is a gamete? How do we represent the chromosome number: 2n or n?
25. What is crossing over? When does it happen? Draw a picture if it helps.
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