NEET 2019 Biology question

Purines found both in DNA and RNA are

(1)Adenine and thymine
(2)Adenine and guanineCorrect
(3)Guanine and cytosine
(4)Cytosine and thymine

Answer: (2)

Solution

Purines are the two-ring nitrogenous bases, adenine (A) and guanine (G); they occur in both DNA and RNA. Pyrimidines are the single-ring bases cytosine,

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Question ID VK-092489