In a research study, the term “population” refers to: a: the group of participant volunteers that shows up on the day of the experiment.
b: the group of people the researcher draws his sample from.
c: the specific group of participants the researcher chooses to work with.
d: all of the researchers in a given field of study.

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