DNA molecules are held together by hydrogen bonds between complementary base pairs. Specifically, adenine (A) pairs with thymine (T) through two hydrogen bonds, and cytosine (C) pairs with guanine (G) through three hydrogen bonds.
RNA molecules, on the other hand, are typically held together by phosphodiester bonds. These bonds form between the 3' carbon of one nucleotide and the 5' carbon of the adjacent nucleotide, creating a sugar-phosphate backbone.
the DNA molecules held together by what bond and RNA also by what bond
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