Q1 of 6 Page 101

The nitrogen base absent in RNA

RNA (Ribonucleic acid) do not contain thymine nitrogenous base because it contains uracil in place of it. Four nitrogenous bases present in RNA are Adenine, Guanine, Cytosine and Uracil.

Thymine is absent in it and therefore, correct option is (b) Thymine.


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