If the dna content of a diploid cell in prophase i is x, what would it be for the same cell at prophase ii? 2x , x/4 , x/2

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

Which of the following is not a product of the second stage of glycosis

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring