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Which nitrogenous bases are always paired with each other in the dna double helix?

User Cyonder
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a dna double helix consists of a purine base, such as adenine and guanine, paired with its complementary pyrimadine base, such as thymine and cytosine.
Adenine pairs with thymine; A-T
Cytosine pairs with guanine; C-G
User Arslaan Ejaz
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