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Q.

The difference in the structure of DNA and RNA is the presence of uracil in RNA instead of thymine in DNA. At molecular level, thymine differs from uracil in having a 

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a

Aldehyde group

b

Ketone group

c

Methyl group

d

Carboxylic group

answer is C.

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Detailed Solution

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Why is thymine in DNA and uracil in RNA? - Quora

Both differ by -CH3 group.

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