Why are autosomal dominant disorders rarer than autosomal recessive disorders?
Choose one:
A. Mutations for autosomal dominant disorders occur more infrequently.
B. An allele for an autosomal dominant disorder cannot “hide” in someone who is heterozygous, so it is less likely to be passed down.
C. Autosomal dominant disorders can only occur through spontaneous mutations and cannot be passed down from parent to child.
D. Autosomal dominant disorders are more likely to be lethal.