Why Are the BRCA1 and BRCA2 Genes Considered to Be

question 20

Multiple Choice

Why are the BRCA1 and BRCA2 genes considered to be tumor-suppressor genes?

• A)They prevent infection by tumor viruses that cause cancer.
• B)Their normal products participate in repair of DNA damage.
• C)The mutant forms of either one of these prevent breast cancer.
• D)They block penetration of breast cells by chemical carcinogens.

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Definitions:

Salvage Value

The estimated resale value of an asset at the end of its useful life.

Internal Rate

This term is ambiguous without further context. It might refer to Internal Rate of Return (IRR), which is a method of calculating an investment's rate of return.

Cash Flows

The movement of money into and out of a business, project, or financial product.

Company's Cost

The total expenses incurred by a company in the production of goods or services, including materials, labor, and overhead.