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Question

Which base is present in RNA but not in DNA?

A
Uracil
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B
Cytosine
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C
Guanine
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D
Thymine
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Solution

The correct option is A Uracil
RNA contains cytosine and uracil as pyrimidine bases while DNA has cytosine and thymine as pyrimidine bases. Both RNA and DNA have the same purine bases i. e., guanine and adenine.

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