A disadvantage of hazardous chemicals is not that they: A. Have been linked with impairment of fertility B. Have presented dangers to first responders C. Have been implicated in the etiology of birth defects D. Are essential to the functioning of modern society E. Have been implicated in the etiology of cancer

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