Ascientist agrees with the scientific consensus that dinosaurs have scaly skin. then he discovers a new fossil that indicates a dinosaur had feathers. the scientist refuses to consider the new evidence because it does not agree with the accepted ideas. the scientist is

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.