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Nitrogenous Bases

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Question

what is the meaning of'' purine always pair with their corresponding pyrimidine''.

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Solution

In DNA base pairing takes place, it is called complementary base pairing because purines (adenine, guanine) are complementary to pyrimidines (thymine, cytosine, uracil) and thus a purine always pairs with a pyrimidine. Adenine pairs with thymine and cytosine pairs with guanine always in a DNA molecule.

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