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Transcript
SBI3C College Biology
Name: _______________________________
Date: ________________________________
Meiotic Cell Division
MEIOSIS I
MEIOSIS II
Prophase I
Prophase II
Metaphase I
Metaphase II
Anaphase I
Anaphase II
Telophase I
Telophase II
Gametogensis:
The Difference Between Mitosis & Meiosis
Table 1: Comparing Mitotic & Meiotic Cell Division
Mitotic Cell
Meiotic Cell
Division
Division
Cell type of parent
(2n or n)
Cell type of daughter
cell(s)
(2n or n)
Number of daughter
cells produced
Genetic relationship
of daughter cells to
parent cells and to
each other
(identical or unique)
Number of cell
division
Homework Questions
1. What is the difference between metaphase I and metaphase II?
2. What is the difference between anaphase I and anaphase II?
3. Which stage of meiosis (I or II) is most like mitosis? Explain.
4. How are haploid cells different from diploid cells in humans?
5. What is a tetrad?
6. What are homologous chromosomes?
7. Do homologous chromosomes have the same number of genes?
8. Do homologous chromosomes have identical genes? Explain.
9. What are the two key features of meiosis that contribute to
genetic variations?
10. Explain why synapsis may lead to the exchange of genetic
information.
11. How is crossing over different from independent assortment?
12. Compare the key similarities and differences between
spermatogenesis and Oogenesis.
13. A muscle cell of a mouse contains 22 chromosomes.
Based on this information, how many chromosomes
are there in the following types of mouse cells?
a. Daughter muscle cell formed from mitosis
b. Egg cell
c. Fertilized egg cell
14. When meiosis occur in females, the cytoplasm is not
divided equally among the resulting four cells. Explain
why.
15. Draw a diagram of meiosis to show how a female child
is produced from the union of a sperm and an egg.
16. Fill in the blanks:
A diploid cell undergoes _______ nuclear division(s) in
mitosis. Mitosis produces ______ diploid cells.
A diploid cell undergoes _________ nuclear division(s) in
meiosis. Meiosis produces ______ haploid daughter cells.
Generalized Life Cycle
The two important processes in the life cycle of any sexually
reproducing organisms are meiotic cell division and fertilization.