DNA Double Helix Structure - Base Pairing and Molecular Geometry #1422366 (License: Personal Use)

This detailed illustration depicts the classic Watson-Crick model of DNA, emphasizing its right-handed double-helical conformation, hydrogen-bonded base pairs, and antiparallel strands. Each nucleotide-adenine (A), thymine (T), guanine (G), and cytosine (C)-is explicitly labeled to demonstrate strict complementarity and structural symmetry. The shading and perspective convey depth and molecular orientation critical for understanding replication and transcription mechanisms.

Used in educational websites, biology textbooks, and science outreach materials to teach molecular genetics; matches user intent for visual learning about DNA structure, replication, or genetic coding fundamentals.