Question

which best describes an oncogene? a a gene that prevents cells without damaged dna from dividing. b a gene that prevents cells with damaged dna from dividing. c a gene that promotes the division of cells with damaged dna. d a gene that promotes the division of cells without damaged dna.

Explanation:

Oncogenes are genes that promote cell - division. They can contribute to cancer development when mutated. A gene that promotes the division of cells with damaged DNA can lead to uncontrolled cell growth characteristic of cancer. Tumor - suppressor genes prevent cells with damaged DNA from dividing.

Answer:

C. A gene that promotes the division of cells with damaged DNA.