How are complementary bases in DNA held together? | AAT Bioquest

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How are complementary bases in DNA held together?

Posted April 5, 2024

Cellular Processes Cellular Structures and Organelles DNA and RNA Quantitation Gene Expression Analysis & Genotyping Nucleic Acids Nucleus Physiological Probes

Answer

Complementary bases in DNA are held together by hydrogen bonds. Aadenine (A) forms two hydrogen bonds with thymine (T), and cytosine (C) forms three hydrogen bonds with guanine (G). These hydrogen bonds create stable pairs between the nitrogenous bases, contributing to the structural framework of the DNA double helix.

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