Question

Proto‑oncogenes are genes that have the potential to become oncogenes through either mutation or an increase in expression. Classify the statements as describing proto‑oncogenes or tumor suppressor genes.

Answer 1

Answer:

Proto-oncogenes

• These genes code for protein that normally promote cell division
• Mutations that increase activity of these genes may lead to cancer

Tumor suppressor genes

• These genes code for protein that normally prevent uncontrolled cell division
• Some products of these genes normally function in repairing damaged DNA

• Mutation that decrease activity of these genes may lead to cancer.

Explanation:

Proto-oncogenes are group of genes that ordinarily help cells develop. At the point when a proto-oncogene mutates or there are such a large number of duplicates of it, it turns into a "terrible" quality that can turn out to be forever turned on or activated when it shouldn't be. At the point when this occurs, the cell becomes wild, which can prompt malignant growth. This terrible quality is called an oncogene.

Tumor suppressor genes are normal gene that hinder cell division, fix DNA missteps, or tell cell when to undergo apoptosis (die). At the point when tumor suppressor gene don't work appropriately or inactivated, cells can develop uncontrollable growth, that ultimately lead to cancer.