Many Human Recessive Genetic Diseases Are Maintained Despite Continuing Selection

question 3

Multiple Choice

Many human recessive genetic diseases are maintained despite continuing selection against them because

• A)heterozygotes have a higher fitness than either homozygote.
• B)the recessive alleles mutate to dominant type.
• C)there is no inheritance for the recessive allele.
• D)the dominant allele frequency remains the same over generations.

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Definitions:

Moderate Consumption

The intake of substances like food or alcohol in amounts that are within guidelines considered healthy or low-risk.

High-Risk Drinking

Alcohol consumption at levels that significantly increase the risk of physical or psychological harm.

Respondents

Individuals who answer or respond to a survey, questionnaire, or poll.

First Alcohol

The initial exposure or experimentation with alcohol by an individual.