Tumor-Suppressor Genes ________

question 9

Multiple Choice

Tumor-suppressor genes ________.

• A) are frequently overexpressed in cancerous cells
• B) are cancer-causing genes introduced into cells by viruses
• C) encode proteins that help prevent uncontrolled cell growth
• D) often encode proteins that stimulate the cell cycle

---

Definitions:

Dehydration

The chemical process by which a molecule of water is removed from the reactants to form the product.

Sulfuric Acid

A highly corrosive strong mineral acid with the molecular formula H2SO4, widely used in industry and manufacturing.

Carbanion

A negatively charged ion (anion) of carbon that carries a lone pair of electrons, making it extremely reactive in organic reactions.

Hydride Shift

A rearrangement reaction where a hydride ion (H-) moves from one carbon atom to another within a molecule.