Which nitrogenous base always pairs with guanine? A.) thymine B.) uracil C.) adenine D.) cytosine
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In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). In RNA, adenine (A) pairs with uracil (U), and guanine (G) pairs with cytosine (C). Show more…
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