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)

Equal

Diffferent

Weird

Same

Answer 1

"Hetero" means different, so "Heterozygous" refers to a genotype that has different alleles, one dominant and one recessive. This is why they "carry" the recessive gene; it's present, but the dominant allele masks its effect.