Why Are BRCA1 and BRCA2 Considered to Be Tumor-Suppressor Genes

question 46

Multiple Choice

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

• A) Their normal products participate in repair of DNA damage.
• B) The mutant forms of either one of these prevent breast cancer.
• C) The normal genes make estrogen receptors.
• D) They block penetration of breast cells by chemical carcinogens.

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Definitions:

Lymph

A clear fluid that circulates through the lymphatic system, carrying cells that help fight infection and disease.

Bean-Shaped

Descriptive term typically used to describe the shape of organs or structures, notably the kidneys.

Lymphatic Organs

Organs, including the lymph nodes, spleen, and thymus, that are part of the immune system, helping to filter pathogens and produce white blood cells.

Lymph Nodes

Small, bean-shaped structures that are part of the lymphatic system, helping the body fight infections and other diseases.