Biology
Name: ____________________________ Per: ____
Chromosomes and Cell Reproduction Review
1. What are 2 identical parts of a chromosome?
2. What is the technical term for a sex cell?
3. When a cell goes through mitosis and cytokinesis, how does the number
of chromosomes in the daughter cells compare to the parent cell?
4. What 2 major events occur during interphase?
5. In what form is DNA during interphase?
6. Mitosis is the splitting of the ___________________________.
7. Cytokinesis is the splitting of the ______________________________.
8. What is a somatic cell?
9. If a somatic cell has 14 chromosomes, how many chromosomes are in the
sex cells?
10. What holds two chromatids of a chromosome together?
11. What holds the chromosomes in place during metaphase of mitosis?
12. If a cell has 8 duplicated chromosomes (appear as “x”), how many
chromatids are in the cell?
13. Define diploid.
14. What cells of the body are diploid?
15. Define haploid.
16. What cells of the body are haploid?
17. Meiosis results in cells with _________________ the number of
chromosomes as the original cell. Why is this important?
18. What is the pairing of homologous chromosomes that occurs in meiosis?
19. What is the exchange of genetic material between chromatids of
homologous chromosomes?
20. What is the homologous pair unit that is formed during synapsis?
Biology
Name: ____________________________ Per: ____
Chromosomes and Cell Reproduction Review
21. Identify the phases of the cell cycle as IPMATC by writing the phase on
the line. Then, number the phases in order, starting with interphase.
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For the following, identify the phase of mitosis or meiosis that is being described.
Mitosis
Meiosis
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
E.
F.
G.
H.
Prophase I
Metaphase I
Anaphase I
Telophase I
I. Prophase II
J. Metaphase II
K. Anaphase II
L. Telophase II
_____ 24. Tetrads (homologous pairs) line up along the midline of the cell.
_____ 25. Crossing over occurs.
_____ 26. Chromosomes coil in a diploid somatic cell not in the ovaries/testes.
_____ 27. Chromatids of chromosomes separate in a diploid cell.
_____ 28. Chromosomes uncoil in a haploid cell.
_____ 29. Homologous chromosomes separate from each other.
_____ 30. Chromosomes line up in single file in the midline of a diploid cell.
_____ 31. Synapsis occurs.
_____ 32. Chromatids of chromosomes separate in a haploid cell.
_____ 33. Nucleolus returns in a haploid cell.
_____ 34. Nuclear envelope breaks down in a haploid cell.
_____ 35. Tetrads form.
_____ 36. Nucleolus returns in a diploid cell.
_____ 37. Spindle breaks down for the 1st time in a haploid cell of the
ovaries/testes.
_____ 38. Chromosomes line up in single file of a haploid cell.