The product of a gene inhibits cyclin production.Thus, it is most likely
A) an oncogene.
B) a tumor suppressor.
C) a necrosis factor.
D) a Cdk.
E) a taxol.

Question

Quizplus · Accepted Answer

The fact that the gene product inhibits cyclin production suggests that it plays a role in regulating the cell cycle, and specifically in preventing uncontrolled growth and division. This is characteristic of tumor suppressor genes, which help to prevent the development of cancer. Oncogenes, on the other hand, promote cell growth and division, so it is unlikely that the gene in question is an oncogene. Necrosis factors are a type of protein involved in cell death, and Cdk (cyclin-dependent kinase) is a protein that helps to drive the cell cycle forward, so neither of these options fit with the given information. Taxol is a drug used to treat cancer, but it is not a gene product, so it is not applicable in this context.

The Product of a Gene Inhibits Cyclin Production