OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In trying to determine whether DNA or protein is the genetic material, Hershey and Chase made use of which of the following facts?
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DNA contains sulfur, whereas protein does not.
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DNA contains phosphorus, whereas protein does not.
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DNA contains nitrogen, whereas protein does not.
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DNA contains purines, whereas protein includes pyrimidines.
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Explanation:
Detailed explanation-1: -DNA contains phosphorus, whereas protein does not.
Detailed explanation-2: -How did the Hershey and Chase experiment produce evidence that DNA, and not protein, is the hereditary material in viruses? they found all of the viral DNA and little of the protein had entered ecoli cells. then they concluded that DNA is the hereditary molecule in viruses.
Detailed explanation-3: -They used different radioactive isotopes to label DNA and protein coat of the bacteriophage. The grew some bacteriophages on a medium containing radioactive phosphorus (32p) to identify. DNA and some on a medium containing radioactive sulphur to identify protein.
There is 1 question to complete.