5 nucleotide bases are attached to each other with the help of hydrogen bond.
Adenine, cytosine, guanine, thymine, and uracil are the 5 nucleotide bases from which DNA and RNA are formed. Adenine, cytosine, guanine and thymine are found in DNA molecule while on the other hand, Adenine, cytosine, guanine, and uracil are found in RNA molecule.
In DNA molecule uracil is absent and thymine is present whereas in RNA molecule, uracil is present and thymine is absent. Two nucleotide bases are attached to each other with the help of hydrogen bond so we can conclude that 5 nucleotide bases are attached to each other with the help of hydrogen bond.
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