Download Name Intro, Chromosomes, Cell Division, and Cancer Review

Name ________________________
Intro, Chromosomes, Cell Division, and Cancer
Review Questions
1.
Contrast chromosomes and genes and describe their role in heredity.
2. Describe Darwin’s proposal that attempted to bridge the “gap” in his theory of natural selection.
How was this proposal related to ideas advanced much earlier within the historical context or
genetics?
3. Discuss the concepts of homologous chromosomes, diploidy, and haploidy. What characteristics
are shared between two homologous chromosomes considered to be homologous?
4. If an organism has a diploid number of 16, how many chromatids are visible at the end of
prophase of mitosis? How many chromosomes are moving to each pole during anaphase of
mitosis?
5. Contrast telophase in animal and plant mitosis.
6. Contrast spermatogeneisis and oogenesis. What is the significance of the formation of polar
bodies?
7. Discuss the role of the p53 gene in the regulation of the cell cycle. What consequences result
when this gene loses normal function as a result of mutation?
8. Define tumor suppressor genes. Why are most tumor suppressor genes expected to be
recessive?
9. Distinguish between oncogenes and proto-oncogenes. In what ways can proto-oncogenes be
converted to oncogenes?
10. Review the stages of the cell cycle. What events occur in each of these stages? Which stage is
most variable in length? (Create a table to organize your information if you’d like.)