Which of the following statements is not true for cancer cells in rela...
Explanation:
Cancer cells are characterized by a variety of mutations that allow them to proliferate uncontrollably. Some of the common mutations found in cancer cells include mutations in proto-oncogenes, tumor suppressor genes, and genes involved in DNA repair. However, not all mutations are beneficial for cancer cells.
Mutations inhibit production of telomeres:
This statement is not true for cancer cells. Telomeres are the protective caps at the end of chromosomes that shorten with each cell division. However, cancer cells can avoid this process by activating telomerase, an enzyme that rebuilds telomeres. In this way, cancer cells can continue to divide indefinitely, leading to tumor growth.
Mutations in proto-oncogenes acceleration the cell cycle:
Proto-oncogenes are genes that regulate cell growth and division. However, mutations in proto-oncogenes can turn them into oncogenes, which promote uncontrolled cell growth and division. This can lead to accelerated cell cycle and tumor growth.
Mutations destroy telomerase inhibitor:
Telomerase inhibitors are drugs that prevent cancer cells from activating telomerase. However, mutations in cancer cells can destroy the telomerase inhibitor, allowing cancer cells to continue to divide and grow.
Mutations inactivate the cell control:
Tumor suppressor genes are genes that normally prevent cells from becoming cancerous by regulating cell growth and division. However, mutations in tumor suppressor genes can inactivate them, allowing cancer cells to grow and divide uncontrollably.
In conclusion, cancer cells are characterized by a variety of mutations that allow them to proliferate uncontrollably. While some mutations are beneficial for cancer cells, others are not and can be targeted by cancer treatments.
Which of the following statements is not true for cancer cells in rela...
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