Which of the Following Statements Describes Proto-Oncogenes

question 71

Multiple Choice

Which of the following statements describes proto-oncogenes?

• A) Their normal function is to suppress tumor growth.
• B) They are introduced to a cell initially by retroviruses.
• C) They are produced by somatic mutations induced by carcinogenic substances.
• D) They can code for proteins associated with cell growth.
• E) They are underexpressed in cancer cells.

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Definitions:

Sterile Gloves

Gloves that have been treated to eliminate all forms of microbial life and are used to prevent contamination in medical procedures.

Sterile Field

A specific area, such as in a surgical room, that is kept free of all microorganisms to prevent infection during medical procedures.

Vasectomy

The cutting out of a portion of the vas deferens.

Vas Deferens

The excretory duct of the testes.