When Genes at Many Loci Affect a Character

question 11

Multiple Choice

When genes at many loci affect a character,

• A) the trait is more likely to occur in a smooth distribution.
• B) natural selection cannot act on the character.
• C) the environment is less likely to affect the character.
• D) both a and c are correct.

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Definitions:

Psychosexual Stage

A theory by Sigmund Freud that proposes children pass through a series of stages centered on erogenous zones.

Sexual Interests

The specific desires, preferences, or attractions an individual has regarding sexual activities and partners.

Gender Identity

A person's intrinsic perception of their gender identity, which might not align with the gender assigned to them at birth.

Phallic Stage

A phase in Freudian psychosexual development during which a child's focus of pleasure is on the genital area.