Question
Biology Question on Structure of DNA and RNA
The purine base present in RNA is :
A
guanine
B
thymine
C
cytosine
D
uracil
Answer
uracil
Explanation
Solution
There are 4 purines and 4 pyrimidines that are of concern to us. Cytosine is termed in both RNA and DNA. Uracil is found only in RNA. Thymine is normally found in DNA. Therefore, in the given options only guanine is purine base. So it is present in RNA.