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When the viruses are cultivated in the medium containing radioactive Sulphur, then these viruses possess radioactive DNA but not radioactive protein.

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in Biology – Class 12 by (271k points)
When the viruses are cultivated in the medium containing radioactive Sulphur, then these viruses possess radioactive DNA but not radioactive protein.

(a) True

(b) False

This question was addressed to me in exam.

The above asked question is from The Genetic Material is DNA in section Molecular Basis of Inheritance of Biology – Class 12

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Correct answer is (b) False

Easy explanation: DNA doesn’t contain Sulphur whereas protein does. So, when the virus is placed in the culture medium containing radioactive Sulphur, radioactive protein is produced and not the radioactive DNA. This is due to the presence of Sulphur in proteins.

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