Question

Which of the following is a purine?

A

Cytosine

B

Guanine

C

Thymine

D

Uracil

Easy
Solution
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Correct option is B)

In DNA, the purine bases adenine and guanine form hydrogen bonds with their complementary pyrimidines, thymine, and cytosine, respectively. This is called as a complementary base pairing. So, guanine is a purine
So, the correct answer is 'Guanine'

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