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Question

The unequivocal proof of DNA as the genetic material came from the studies on a


A
Bacterium
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B
Fungus
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C
Viroid
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D
Bacterial virus
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Solution

The correct option is D Bacterial virus
The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase (1952). They worked with viruses that infect bacteria called as bacteriophages. The bacteriophage attaches to the bacteria and its genetic material then enters the bacterial cell. The bacterial cell treats the viral genetic material as if it was its own and subsequently manufactures more virus particles. Hershey and Chase worked to discover whether it was protein or DNA from the viruses that entered the bacteria.

Biology

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