A Mutation in __________ May Alter the Rate at Which

question 21

Multiple Choice

A mutation in __________ may alter the rate at which UT is converted to CTP.

• A) CTP synthetase
• B) UTP dehydrogenase
• C) CTP transferase
• D) UTP decarboxylase

---

Definitions:

Tight Junctions

Specialized connections between neighboring cells, creating a nearly impermeable barrier to prevent leakage of extracellular fluid across a layer of epithelial cells.

Intercalated Discs

Specialized structures found in cardiac muscle tissue that facilitate the transmission of electrical signals and coordination of muscle contraction.

Striations

A series of ridges, furrows, or linear marks, frequently found in muscle tissue and certain types of rocks.

Cardiac Muscle

A specialized type of muscle found only in the heart, responsible for pumping blood throughout the body.