A Severe Disease That Is Inherited as an Autosomal Recessive

question 8

Multiple Choice

A severe disease that is inherited as an autosomal recessive trait is more likely to skip generations in a pedigree than an autosomal recessive trait that causes a harmless phenotypic variant because

• A) all autosomal recessive traits skip generations.
• B) a person with the harmless variant is less likely to reproduce than a person with the disease.
• C) a person with an autosomal recessive disease is less likely to be well enough to reproduce than a person with a harmless trait variant.
• D) all inborn errors of metabolism are dominant.
• E) a family with an autosomal recessive disease is usually much smaller than a family with an autosomal recessive harmless trait variant.

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Definitions:

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