A gene that can cause cancer when present in a single copy in a cell is called a(n)
A) oncogene.
B) tumor-suppressor gene.
C) proto-oncogene.

Question

Quizplus · Accepted Answer

Oncogenes are genes that have the potential to cause cancer when present in a single copy in a cell. They promote cell growth and division, and their overactivity or mutation can lead to uncontrolled cell growth and eventually cancer. Tumor-suppressor genes, on the other hand, normally prevent cancer by regulating cell growth and division, but their loss or inactivation can also lead to cancer. Proto-oncogenes are normal genes that can become oncogenes when mutated or activated inappropriately.

A Gene That Can Cause Cancer When Present in a Single