Observing The Cell Cycle Biology Worksheet Page 7
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29Investigation 10B
Modeling Mitosis and Meiosis
D
Applying your knowledge
a. Fill in Table 1 with the correct information.
Table 1: Cell cycle and mitosis in fruit flies
Step
Number of cells
Number of chromosomes
Number of homologous
in each nucleus
pairs in each nucleus
Interphase
Cytokinesis
b. What is the purpose of mitosis?
A diploid set of human chromosomes contains 23 homologous pairs (46 chromosomes).
c.
Fill in Table 2 with the correction information regarding human body cells.
Table 2: Cell cycle and mitosis in humans
Step
Number of cells
Number of chromosomes in
Number of homologous
each nucleus
pairs in each nucleus
Interphase
Cytokinesis
d. Why is it necessary to double the amount of genetic material before mitosis begins?
e. The two daughter cells end up with an exact copy of the genetic material from the parent
cell. How does your simulation support this statement?
3
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