Question

Thymine is

• A. 5-methyluracil
• B. 4-methyluracil
• C. 3-methyluracil
• D. 1-methyluracil

Answer 1

Answer: (A)

5-methyluracil

Answer 2

Thymine is an amino acid. It is formed when $5$ carbon position of uracil is substituted by methyl group. So it is $5$-methyl uracil.