<prompt> Which of the following nitrogen base is not seen in RNA:AdenineThymineGuanineCytosine  <response>: Ans. b ThymineRef: Harpers Biochemistry, 30th pg. 341, 29th ed. pg. 344Nitrogen Bases present in RNA are-Nitrogen Bases present in DNA are- Adenine Adenine Guanine Guanine Uracil Thymine Cytosine Cytosine 