Mutations in the hypothetical gene S67 can lead to cancer when these mutations reduce the expression of the gene.Thus, S67 is likely
A) an oncogene.
B) a necrosis factor.
C) the result of aneuploidy.
D) a tumor suppressor.
E) a chiasma.

Question

Quizplus · Accepted Answer

The fact that mutations in S67 lead to cancer when they reduce the gene's expression suggests that S67 is a tumor suppressor gene, and not an oncogene, necrosis factor, aneuploidy, or chiasma. Tumor suppressor genes typically code for proteins that help to prevent cancer formation, by halting cell division, repairing DNA damage, or promoting apoptosis (cell death) when necessary. When a tumor suppressor gene is mutated and loses its function, cells can become cancerous.

Mutations in the Hypothetical Gene S67 Can Lead to Cancer