Question

Choose the correct answers from the alternatives given :
Which is not nucleotide base in DNA?

• A. Cytosine
• B. Thymine
• C. Uracil
• D. Adenine

Answer 1

Answer: (C)

Uracil

Nitrogenous bases are essentially of two types

1. Purines (adenine and guanine), and
2. Pyrimidines (thymine, cytosine, and uracil).

In DNA, the nitrogen bases, adenine, guanine, thymine and cytosine are present. While in RNA, uracil is present instead of thymine.

So, the correct option is 'Uracil'.