Which Statement Regarding Inheritance of an Autosomal Dominant Gene Allele

question 10

Multiple Choice

Which statement regarding inheritance of an autosomal dominant gene allele with known variability in expressivity is true?

• A)A person with low expressivity of the trait has higher probability for having a child who does not express the trait at all.
• B)A person with high expressivity of the trait has a greater risk for having a child who expresses the trait to an even greater degree.
• C)The degree of expressivity of a given autosomal dominant trait with known variability cannot be predicted by analyzing parental expression.
• D)The degree of expressivity of a given autosomal dominant trait with known variability is greater when the transmitting parent is the same sex as the child.

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