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1. Body cells, red blood cell, skin cell, brain cell
2. What type of cell undergoes meiosis?
Gamete cells
or Somatic cells
4. Define homologous chromosomes. 2 chromosomes with similar structure
5. For each of the following state if the cell is haploid or diploid.
Sperm cell =haploid
Liver cell =diploid
Egg cell =haploid
Stomach cell =diploid
6. If the diploid number in a liver cell of an organism is 52, how many chromosomes are there in the
egg of this organism? 26
7. The fusion of sperm and a egg produces a zygote with 46 chromosomes
8. During meiosis, the chromosome number:
a) is doubled b) is reduced c) remains the same
d) becomes diploid
9. Meiosis produces haploid cells called gametes
10. sperm and egg- each have 23 chromosomes
11. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes.
diploid
12. How many times do cells divide during meiosis?
twice
13. MeiosisI: Prophase I, Metaphase I, Anaphase I, and Telophase I
Meiosis II: Prophase II, Metaphase II, Anaphase II and Telophase II
14. Pairs of chromosomes lying together in Prophase I
15. 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 non-sister chromatids
d.) A separation of two sister chromatids
16. DNA
17. Crossing over can be found in the stage of Prophase I
Figure 2
18. Which letter in Figure 2 represents meiosis? Why?
D, one diploid cell becomes 4 haploid
19. How many cells are formed at the end of Meiosis I?
2
20. Is DNA copied before Meiosis II? No
21. How many cells form at the end of meiosis and how many
chromosomes do they each contain?
4 with 23 chromosomes
22. Oogenesis ultimately gives rise to Four ova with Hapoid
23. A sperm cell is a (gamete or zygote), and is (haploid or
diploid).
24. When a sperm cell and an ovum merge, they undergo the
process of fertilization, and give rise to a zygote which is
diploid
25. a. 10
b. 10
c. 5
d. 5
e. 5