Riboflavin (vitamin B2) is isolated by filtration and polished by spray drying. The efficiency of both processes (higher yield per unit time) increases with increasing temperature. Find the necessary handbook data and determine the maximum temperature at which you could run these two unit operations.

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.