Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mates with an individual heterozygous for free earlobes?
A)two alleles segregate into each gamete. B)more gametes carrying the dominant allele are produced than gametes carrying the recessive allele. C)gametes have one allele copy for each gene. D)gametes are diploid.