If an Individual Is Heterozygous for a Particular Trait

question 47

Multiple Choice

If an individual is heterozygous for a particular trait

• A) each parent contributed a different allele for that trait.
• B) each parent contributed the same allele for that trait.
• C) one parent contributed two different alleles for that trait.
• D) one parent contributed two copies of the same allele for that trait.
• E) a mutation must have occurred.

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Definitions:

Adrenal Glands

Small glands located on top of each kidney which produce various hormones including adrenaline and cortisol, involved in response to stress.

Visual Cliff

An experimental apparatus used to measure infants' perception of depth and their fear of falling.

Depth Perception

The ability to perceive the world in three dimensions and to judge the distance of objects.

Emotional Reactions

Immediate responses to stimuli or situations that involve feelings, ranging from happiness and love to anger and fear.