when a heterozygouse shows a phenotype that is intermediate between the two homozygous phenotypes. Neither allele is expressed fully.
do alleles blend in incomplete dominance?
NO, the phenotype is intermediate between the two separate and distinct alleles
codominance
when both alleles in the heterozygote express themselves fully (one parent A, other B, offspring AB)
polygenic traits
traits controlled by 2 or more gene pairs (ex: eyes - color, tone, depth each have different gene pair controlling
multiple alelles
where there are 3 or more alleles for a trait in the population (ex: each person in human race can only have 2 alleles for blood type, but in whole race there are 3)
