Why do the arguments for and against the use of stem cells in medical research share?

Discuss the functions of epithelial connective nerviud and muscular tissues

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

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?