A Colorblind Man Marries a Woman Who Is Heterozygous for the Trait

question 75

Multiple Choice

A colorblind man marries a woman who is heterozygous for the trait. What proportion of their sons, if they have any, can be expected to be colorblind?

• A) 1:2
• B) 1:4
• C) 1:8
• D) All their boys will be colorblind.
• E) 0

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Definitions:

Prefrontal Cortex

The region of the brain located at the front of the frontal lobes, involved in planning complex cognitive behavior, decision-making, and moderating social behavior.

Neurons

Specialized cells that transmit nerve impulses; the basic building blocks of the nervous system.

Motivational Properties

Characteristics of a stimulus that influence an individual's willingness to engage in a particular behavior.

Reinforcement-Seeking Behavior

Actions specifically performed with the intention of obtaining reward or reinforcement.