Tongue-rollers are dominant, and are represented with a capital r. non-
rollers are recessive, and are represented with a lowercase r.
if a person received the allele for the ability to roll her tongue from her
mother, and the lack of ability to roll her tongue from her father, what would
be her genotype and phenotype?
oa) rr; non-roller
ob) rr; non-roller
c) rr; tongue-roller
od) rr; tongue-roller
!

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4