If the Frequency of an Autosomal Recessive Trait in Humans

question 55

Multiple Choice

If the frequency of an autosomal recessive trait in humans is 1 out of 100 births, what would be the expected frequency of heterozygote carriers for the trait if we assume that the gene is in Hardy-Weinberg equilibrium?

• A)0.01
• B)0.10
• C)0.18
• D)0.81

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Definitions:

Weber Test

A tuning fork test used in audiology to assess hearing loss by determining whether sound is heard better in one ear than the other.

Vital Capacity

The total volume of air exchanged from forced inspiration and forced expiration.

Protanopia

A type of color blindness where there is a deficiency in red cone cells, making it difficult to distinguish red from green.

Tympanometry

A test that measures the movement of the eardrum in response to changes in air pressure, used to diagnose middle ear problems.