In DNA base pairing, adenine always pairs with

Guanine

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Thymine

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Uracil

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Cytosine

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Solution

The correct option is B
Thymine

Adenine, guanine, cytosine, and thymine are the bases present in DNA. In base pairing, adenine always pairs with thymine by two hydrogen bonds, and guanine always pairs with cytosine by three hydrogen bonds.

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Similar questions

Statement 1: The four nitrogen bases in a DNA molecule are guanine, thymine adenine, cytosine.

Statement 2: Where adenine and thymine are purines and guanine and cytosine are pyrimidines.

Which of the following bases is not present in DNA?
(a) Adenine (b) Thymine (c) Cytosine (d) Uracil

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