Individuals with One Sickle Cell Allele and One Normal Hemoglobin

question 52

Multiple Choice

Individuals with one sickle cell allele and one normal hemoglobin allele are not affected by the malaria parasite because of ____.

• A) neutral mutations
• B) heterozygote advantage
• C) frequency-dependent selection
• D) disruptive selection
• E) stabilizing selection

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Definitions:

Psychosexual Stages

A series of stages proposed by Freud through which a child's personality develops, each characterized by a focus on erogenous zones.

Freud's Theories

A set of psychoanalytic concepts developed by Sigmund Freud that attempt to explain the human psyche, including the id, ego, and superego, along with the stages of psychosexual development.

Empirically

Refers to knowledge or information gained through observation, experience, or experiment rather than through theory or pure logic.

Reaction Formation

Disguising unconscious content by turning it into its opposite.