Some tumor-causing mutations increase the activity or number of molecules that stimulate cell division.Genes in which such mutations occur are called _______.
A) chromatids
B) cancer genes
C) metastastatic genes
D) proto-oncogenes
E) neoplasmic genes

Question

Some tumor-causing mutations increase the activity or number of molecules that stimulate cell division.Genes in which such mutations occur are called _______.  
A) chromatids
B) cancer genes
C) metastastatic genes
D) proto-oncogenes
E) neoplasmic genes

Quizplus · Accepted Answer

Mutations that lead to increased activity or number of molecules that stimulate cell division are found in proto-oncogenes, which are normal genes that regulate cell growth and division. When these genes are mutated, they become oncogenes, which can promote tumor formation. Choices A, B, C, and E are not correct.

Some Tumor-Causing Mutations Increase the Activity or Number of Molecules