DNA Double Helix Structure Explained - Base Pairing and Molecular Geometry #3555056 (License: Personal Use)

This diagram illustrates the iconic double helix conformation of DNA, with two antiparallel strands held together by hydrogen-bonded base pairs-adenine (A) with thymine (T), and cytosine (C) with guanine (G). The sugar-phosphate backbones form the outer rails, while colored blocks represent the nitrogenous bases in a sequence-specific arrangement. The image clarifies how genetic information is stored and replicated via complementary pairing.

Used in educational resources (e.g., high school/college biology textbooks, online courses, science websites) to teach molecular genetics, DNA replication, and nucleic acid structure; matches user intent for visual learning and conceptual clarity.