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

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Definitions:

Somatogenic Perspective

The view that mental disorders originate from biological or physiological causes, emphasizing medical treatment.

Abnormality

A deviation from the norm or standard, especially in behavior, structure, or function, which may suggest a pathology or disorder.

Hippocrates

An ancient Greek physician often referred to as the "Father of Medicine," he laid the foundation for the practice of medicine based on observation and rationality.

Mental Illness

A broad array of mental illnesses affecting one's mood, cognition, and actions.