Answer :

Final answer:

Nucleotides form nucleic acids like DNA, with complementary base pairing crucial for genetic integrity.


Explanation:

Nucleotides are the building blocks of nucleic acids, which are macromolecules essential for genetic information storage, transmission, and expression. In DNA, nucleotides are linked together through phosphodiester bonds to form a polymer, the nucleic acid.

The secondary structure of DNA involves the famous Watson-Crick model, where the complementary base pairing of adenine with thymine and guanine with cytosine holds the double helix structure together. This base pairing is crucial for maintaining the integrity and accurate replication of genetic information.


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