So they are both heterozygous for tasting PTC. Sometimes this is called, "Carrying the recessive gene."

Question

"Hetero" means ________, so remember that "Heterozygous" would mean that the genotype has different alleles (1 dominant and 1 recessive)-- this is why they "carry" the recessive gene (it's there, but the dominant will cover it up)

Weird

Diffferent

Same

Equal

Answer 1

"Hetero" means different, so "Heterozygous" refers to a genotype that has different alleles (one dominant and one recessive). This is why individuals who are heterozygous carry the recessive gene; it is present in their genotype but is not expressed because the dominant allele masks its effects.