Which Statement Reflects the Criterion for Autosomal-Dominant Transmission of Single-Gene

question 3

Multiple Choice

Which statement reflects the criterion for autosomal-dominant transmission of single-gene traits?

• A)The risk for a person who is homozygous for the trait to transmit the trait to his or her children is 100% with each pregnancy.
• B)The trait often remains unexpressed within a kindred for many generations until a change in environment promotes its expression.
• C)Males in a kindred are more likely to express the trait when the mother has the trait, and females in a kindred are more likely to express the trait when the father has the trait.
• D)Females in a kindred are more likely to express the trait when the mother has the trait, and males in a kindred are more likely to express the trait when the father has the trait.

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Definitions:

Antiviral Drugs

Medications used to treat viral infections by inhibiting the development of the offending virus.

Herpes Simplex Virus

A virus that causes contagious sores, most often around the mouth or on the genitals.

Foreskin

The skin fold that can be pulled back, covering the tip of the penis.

Phimosis

A condition where the foreskin of the penis is too tight to be pulled back over the glans.