Selection Can Maintain Variation Within Populations If Heterozygotes

question 48

Multiple Choice

Selection can maintain variation within populations if heterozygotes

• A) are excluded from the population by environmental factors.
• B) are increased in number by fixation.
• C) mutate into homozygotes at the same rate as they form.
• D) have higher fitness than either of the two homozygotes for a given gene.

Understand strategies for reducing aggression and promoting moral reasoning.

Acknowledge the impact of cultural and environmental factors on aggression.

Understand the psychological mechanisms behind prejudice formation.

Understand key perceptual phenomena and biases such as projection, the fundamental attribution error, and the halo effect.

---

Definitions:

Malnutrition

A condition that results from eating a diet in which certain nutrients are lacking, in excess (too high an intake), or in the wrong proportions.

Weather-related deaths

Fatalities resulting directly or indirectly from weather events, such as storms, heatwaves, floods, or extreme cold.

Epidemiological transition

The process by which the pattern of mortality and disease in a population shifts from infectious and acute disorders to chronic and degenerative diseases.

Migration patterns

The trends or movements of groups of people or animals from one location to another, often studied to understand reasons behind the movements and implications for both origin and destination areas.