What Causes the Differences Between Two Human Cell Types (For

question 10

Multiple Choice

What causes the differences between two human cell types (for example, a skin cell and a brain cell) ?

• A) Different cell types begin with the same genes but eliminate certain genes as they develop.
• B) Different cell types contain different genes.
• C) Different cell types contain different proteins that give each cell a different function.
• D) Different cell types contain the same genes but use different combinations of them.

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Definitions:

Miliaria

A skin condition characterized by small, raised bumps and possibly itchiness due to blocked sweat ducts.

Prickly Heat

A skin rash caused by blocked sweat ducts and trapped sweat beneath the skin, often occurring in hot, humid conditions.

Sweat Test

A diagnostic test primarily used to identify cystic fibrosis, measuring the amount of chloride in sweat.

Chloride

A negatively charged ion (Cl-) that is an essential electrolyte in the body, involved in maintaining fluid balance and blood pressure.