A genetic counselor will know that the probability of having a child affected with a condition inherited as an
autosomal recessive would be:
a. 0.5 or 50% if both parents were homozygous normal.
b. 0.5 or 50% if both parents were heterozygous.
c. 0.25 or 25% if both parents were homozygous normal.
d. 0.25 or 25% if both parents were heterozygous.
e. 0% if both parents were heterozygous.
d
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