In nucleic acids, paired nitrogenous bases are held together primarily by hydrogen bonds. In DNA, for example, adenine (A) forms two hydrogen bonds with thymine (T), and guanine (G) forms three hydrogen bonds with cytosine (C). These hydrogen bonds are crucial for stabilizing the double helix structure of DNA and for the pairing of bases during processes like replication and transcription. In RNA, uracil (U) pairs with adenine (A) using two hydrogen bonds as well.
what type of bonds are formed between paired nitrogenous bases in a nucleic acid
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1 answer