Mutations that lead to cancer can occur in: proto-oncogenes. tumor-suppressor ge

Question

Mutations that lead to cancer can occur in: proto-oncogenes. tumor-suppressor genes. topoisomerase genes. A and B. All of the above. Individuals who are heterozygous for a tumor-suppressor gene: are less likely to develop cancer because the tumor is homozygous. are more likely to develop cancer because only a single mutation is needed. are likely to suffer multiple tumors. B and C. None of the above. Types of genes that cause cancer when mutated include all of the following EXCEPT: cell-cycle control genes. pro-apoptotic genes. growth-factor receptor genes. DNA repair genes. Actually, mutations of any of these can lead to cancer. Genes involved in cancer include all of the following EXCEPT: telomerase, which rebuilds telomeres. angiogenic genes (promote growth of blood vessels).

Explanation / Answer

4. (E) all of the above

Explanation:

5.(D) B & C

6 (E) mutation of any of the given gene lead to Cancer.

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