Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?

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asked Jun 21, 2021 167k views

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Niv Apo · Answer 1 · 2021-06-25T07:24:42+0000

Answer:

Well, all DNA contains phosphorus, and lacks sulfur, whereas protein contains sulfur but no phosphorus. Only one sample had only radioactive DNA while the other only contained radioactive protein.

Why did Hershey and Chase label the viral DNA with radioactive phosphorous and not radioactive sulfur?

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