Question

Which of the following is not found in DNA ?

• A. adenine
• B. cytosine
• C. uracil
• D. thymine

Answer 1

Answer: (C)

Nitrogen base uracil is absent in DNA. Uracil is present in RNA. Thymine (T) in DNA is replaced by uracil in RNA (uracil : 2,6-oxypyrimidine).