Serious diseases are rarely due to dominant alleles because ________.
A. dominant alleles are less likely to be passed on than recessive alleles
B. disorders caused by dominant alleles usually do not produce symptoms until age 35 or later
C. children who inherit the recessive allele cannot develop the disorder and are likely to live long enough to reproduce
D. children who inherit the dominant allele always develop the disorder and seldom live long enough to reproduce
Answer: D
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