In DNA the base pairs are Adenine with Thymine and Guanine with Cytosine.
In RNA Thymine is replaced by Uracil so the base pairs are Adenine with Uracil and Guanine with Cytosine.
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Adenine pairs with thymine in DNA and with uracil in RNA.
In RNA, adenine base pairs with uracil, not thymine as in DNA. This forms an A-U base pair, where adenine and uracil are complementary bases.
The base pairing rule in DNA states that adenine pairs with thymine, and cytosine pairs with guanine. This complementary base pairing allows for the formation of the double-stranded DNA molecule.
Adenine always pairs with thymine in a DNAmolecule.
The complementary base pairs in DNA are adenine (A) with thymine (T), and cytosine (C) with guanine (G).