Based on the table to the right, which two organisms are most closely related? brown rat and Eastern cottontail rabbit or Brown rat and Eastern gray squirrel or eastern cottontail rabbit and eastern gray squirrel?

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.