If two parents had the genotypes YY and Yy, respectively, out of four offspring, how many would have the genotype yy

FIRST ONE GETS BRAINLIEST!!!

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species