Use the Following Information to Answer the Question Below

question 25

Multiple Choice

Use the following information to answer the question below.
In those parts of equatorial Africa where the malaria parasite is most common, the sickle-cell allele constitutes 20% of the β hemoglobin alleles in the human gene pool.
In the United States, the parasite that causes malaria is not present, but it is present in African-Americans whose ancestors were from equatorial Africa. What should be happening to the sickle-cell allele in the United States, and what should be happening to it in equatorial Africa?

• A) stabilizing selection; disruptive selection
• B) disruptive selection; stabilizing selection
• C) directional selection; disruptive selection
• D) directional selection; stabilizing selection

---

Definitions:

Legislature

A government agency authorized to create, modify, and abolish regulations within a specified territory.

Divisible

Characterized by being capable of division or separation into distinct and independent parts or portions.

Illegal Part

Refers to a segment or clause within a contract or agreement that is not permissible by law.

Legal Part

An element or section of a legal document that addresses a specific point or issue.