Question

5-methyl uracil is

• A. Both A and C
• B. A purine base
• C. A double ring structure
• D. Another name of thymine

Answer 1

The correct option is D Another name of thymine

Thymine
Both uracil and thymine are pyrimidine bases that pair with the purine base adenine in RNA and DNA respectively. When uracil has a methyl group in the 5th position, it forms thymine. Hence, 5 - methyl uracil is another name for thymine.


Final answer
(A) Another name of thymine