Question

Generalize: If either allele is the
allele for a trait, the organism will exhibit that trait. An organism will express the recessive trait only when
recessive

Answer 1

If either allele is the dominant allele for a trait, the organism will exhibit that trait. An organism will express the recessive trait only when both alleles are recessive (homozygous recessive).

Example: with alleles A (dominant) and a (recessive), AA and Aa show the dominant trait, aa shows the recessive trait.