Question
Chemistry Question on Nucleic Acids
RNA does not possess
A
uracil
B
thymine
C
adenine
D
cytosine.
Answer
thymine
Explanation
Solution
In RNA and DNA, purines are the same. The two purines are adenine and guanine. The two pyrimidines are cytosine and thymine in DNA but in RNA thymine is replaced by uracil.