The diagram below shows different layers of sedimentary rocks. Based on the diagram, which of these inferences is most likely correct?

A Layer B is older than Layer G

B Layer F is older than Layer D

C Layer A and Layer B were formed at the same time

D Layer D and Layer C were formed at the same time

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.