Which of the following is TRUE?
A) Mutations that inactivate tumor suppressor genes are important in cancer.
B) Cancer is a single disease with one underlying molecular cause.
C) Uncontrolled cell growth alone is sufficient for the development of cancers.
D) Cancer is a single disease resulting from a common set of mutations.

Question

Quizplus · Accepted Answer

Mutations that inactivate tumor suppressor genes are among the most important factors in the development of cancer. When these genes are turned off or nonfunctional, normal regulatory mechanisms cannot control cell division and cell growth pathways may become activated, leading to uncontrolled cell proliferation and the formation of tumors.

B, C, and D are all false. Cancer is a complex set of diseases with multiple causes and underlying molecular mechanisms. Uncontrolled cell growth is one factor, but it is not sufficient by itself to cause cancer. Cancer is not a single disease with a common set of mutations - there are many different types of cancer that arise from different genetic and environmental factors.

Which of the Following Is TRUE