Scientists have developed a synthetic substance that can . a..grow artificial limbs . b..replace damaged nerve tissue . c..conduct, or transmit, nerve impulses . d..be used to replace damaged brain tissue .

What occurs to the cell during mitosis

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

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