Many Tumors Are Found to Overexpress Bcl-2,which Favors Survival of the Transformed

question 9

Multiple Choice

Many tumors are found to overexpress bcl-2,which favors survival of the transformed cells.Which of the following best describes the function of bcl-2?

• A)Direct inhibition of caspase-8
• B)Direct inhibition of caspase-9
• C)Up-regulates expression of DNA repair enzymes
• D)Reduces the leakiness of the mitochondrial membrane
• E)Inhibits the activity of granzymes released from cytotoxic T lymphocytes

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Definitions:

Eutrophic Lakes

Bodies of water that are rich in nutrients like nitrogen and phosphorus, leading to excessive growth of algae and a decrease in oxygen levels.

Clear Water Species

Refers to aquatic organisms that thrive in clean, unpolluted water environments, indicating healthy aquatic ecosystems.

Water Pollution

The contamination of water bodies, like lakes, rivers, oceans, and groundwater, caused by pollutants being discharged directly or indirectly into water sources.

Wildlife

refers to wild animals collectively, which live in their natural environment without direct human intervention.