In nucleic acids, the pure nitrogenous bases (adenine, thymine, cytosine, and guanine in DNA; uracil replaces thymine in RNA) are held together by hydrogen bonds. These bonds form between complementary base pairs: adenine pairs with thymine (or uracil in RNA) through two hydrogen bonds, while cytosine pairs with guanine through three hydrogen bonds. These hydrogen bonds are crucial for the stability of the DNA double helix and the proper functioning of nucleic acids.
what type of bonds are formed between the pure nitrogenous bases in a nucleic acid
1 answer