Some retroviruses can convert:
Correct answer: D. Normal cells into cancer cells
- A. Cancer cells into normal cells
- B. Cancer cells into germ line cells
- C. Cancer cells into degenerated cells
- D. Normal cells into cancer cells
Explanation
Retroviruses can cause cancer by inserting their genetic material into the host cell's DNA. This insertion can disrupt the normal function of genes that control cell growth and division, potentially activating oncogenes (genes that promote cancer) or inactivating tumor suppressor genes (genes that prevent cancer). Additionally, some retroviruses carry oncogenes themselves, directly introducing cancer-causing genes into the host cell. Over time, these disruptions can lead to uncontrolled cell growth and the development of tumors.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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