If There Is No Phenotypic Variation in a Trait, Then

question 39

Multiple Choice

If there is no phenotypic variation in a trait, then the heritability of that trait will be approximately

• A) 1.0.
• B) .50.
• C) .25.
• D) 0.

Recognize physical traits associated with specific ancestral backgrounds, such as the epicanthic eye fold.

Understand the relationship between genetics, diet, and disease, including lactose intolerance and diabetes.

Challenge stereotypes related to behavioral genetics and intelligence.

Comprehend the basics of inheritance, genomic diversity, and the impact of environment versus genetics on human traits and behaviors.

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Definitions:

Biology

The science that studies living organisms and their interactions with one another and their environments.

Environment

The sum of all external conditions and influences affecting the life and development of an organism, encompassing natural, social, and built factors.

Organized Responses

Coordinated reactions by organisms or cells to internal or external stimuli.

Developing Organism

An organism in the stages of growth and development, evolving from early formation to maturity.