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Nucleic Acid Structure - Medical Science

Q1:

In which of the following uracil is present?

A RNA

B DNA

C Both (a) and (b)

D None of these

ANS:A - RNA

Uracil is present in DNA only when deamination of cytosine has occurred. Otherwise, DNA is made of on adenine, thymine, cytosine and guanine. While in RNA cytosine is substituted with uracil.