How Are Proto-Oncogenes and Tumor Suppressor Genes Different

Multiple Choice

How are proto-oncogenes and tumor suppressor genes different?

A) Proto-oncogenes identify and correct cancer-causing mutations in DNA,and tumor suppressor genes attack irregular cell masses using the immune system.
B) Proto-oncogenes halt cell division when DNA contains damage or errors,and tumor suppressor genes promote properly-timed cell division.
C) Proto-oncogenes promote DNA repair when errors are detected,and tumor suppressor genes promote DNA synthesis when a sequence is error free.
D) Proto-oncogenes cause cancer by failing to correct errors of DNA synthesis,and tumor suppressor genes cause cancer by promoting unregulated cell division.
E) Proto-oncogenes promote cell division when a cell is ready,and tumor suppressor genes halt cell division when a DNA sequence needs correction or repair.