Why Do Researchers Believe Color Deficiencies Often Have Genetic Causes

question 240

Multiple Choice

Why do researchers believe color deficiencies often have genetic causes?

• A) Dietary patterns affect color deficiencies.
• B) Color perception changes somewhat as we get older.
• C) Color deficiencies are more common in some cultures.
• D) More males than females suffer from color deficiencies.

---

Definitions:

Antagonist

A substance that blocks or inhibits the effect of a neurotransmitter or hormone, or a character in conflict with the protagonist in literature.

Receptor Sites

Specific locations on the surface of a cell or within cells that are designed to bind with neurotransmitters, hormones, or drugs, triggering a biological response.

Acetylcholine

A neurotransmitter involved in many functions including muscle movement, heart rate, memory, and the sleep-wake cycle.

Nicotine

A stimulating and addictive substance found in tobacco products.