The following is characteristic of dominant alleles:
A)dominant alleles are expressed in heterozygous genotypes
B)dominant alleles are alleles which are most common in populations
C)dominant alleles always cause more serious defects than recessive alleles
D)all of the above

Question

Quizplus · Accepted Answer

Dominant alleles are expressed in heterozygous genotypes, meaning their effect is seen even when paired with a recessive allele. The other options, B and C, are not true for all dominant alleles. Dominant alleles are not necessarily the most common in populations, and they may not always cause more serious defects than recessive alleles.

The Following Is Characteristic of Dominant Alleles