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Question

During Meselson and Stahl’s experiments, heavy DNA was distinguished from normal DNA by centrifugation in

A
CsOH gradient
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B
14NH4Cl
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C
35SO2
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D
CsCl gradient
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Solution

The correct option is D CsCl gradient
During Meselson and Stahl's experiments, heavy DNA was distinguished from normal DNA by centrifugation in CsCl gradient. When DNA is mixed with caesium chloride it will settle down at a particular height in centrifugation, with the heavier ones being more towards the bottom.

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