Which of the following statements about Hershey and Chase experimen...

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Which of the following statements about Hershey and Chase experiment are correct?
I. Sulphur is present in proteins, but not in DNA.
II. Phosphorus is present in DNA, but not in proteins.
III. \( { }^{32} \mathrm{P} \) will end up in the supernatant after centrifugation.
IV. Progeny generation of \( \mathrm{T}_{2} \)-bacteriophage contains \( { }^{32} \mathrm{P} \).
(a) I and II
(b) II and III
(c) III and IV
(d) I, II and IV
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