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How can the genes that a cell possess determine how the cell acts and how it is made??

Which of these parts of the membrane large moecules pass through it ?

What is the difference between a scientific hypotheses and a scientific theory?

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.