The Skin Pigment Melanin Is Expressed Differently According to Exposure

question 67

Multiple Choice

The skin pigment melanin is expressed differently according to exposure to sunlight,with a greater production of the molecule with greater exposure.However,the degree of production can never exceed the inherited genetic level.What evolutionary advantage would be gained from having this phenotypic range for skin pigmentation?

• A)Skin color is an example of polygenic inheritance.
• B)It allows someone to get a tan when they want to.
• C)Production of the molecule would only occur when necessary.
• D)Changes in skin color allow humans to look healthier.
• E)Skin color is an example of a codominant gene.

---

Definitions:

Standardized Intervention

A planned set of actions or procedures that are uniformly applied by healthcare professionals to improve patient outcomes.

Community Health

A field of public health focusing on the health of individuals in a defined community, aiming to improve the health and well-being of the population.

Critical Pathway

A critical pathway is a clinical management plan that outlines the optimal sequencing and timing of interventions by physicians, nurses, and other healthcare professionals for a particular diagnosis or procedure.

Systematic Review

A detailed analysis of all existing primary research on a specific topic that follows a rigorous and predefined protocol.