What binds one nucleotide to another nucleotide?

Answer:

Nucleotides in both DNA and RNA are bound by phosphate ester bonds. See the following link for a detailed discussion:

http://www.ncc.gmu.edu/dna/structur.htm

First answer by Dave Wisker. Last edit by Dave Wisker. Contributor trust: 108 [recommend contributor recommended]. Question popularity: 19 [recommend question].