2. The cells of pea plants, like other organisms, have several chromosomes. Each carries genes that
code for many traits. How does having genes on
many chromosomes, rather than on just one
chromosome, increase genetic variation among
offspring?

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.