DNA Double Helix Structure - Scientific Visualization #1422364 (License: Personal Use)

This grayscale illustration visualizes the canonical B-form DNA double helix, with two antiparallel polynucleotide strands coiled around a central axis. The rungs represent hydrogen-bonded base pairs (adenine-thymine and guanine-cytosine), while the sugar-phosphate backbones form the outer rails. The image emphasizes structural symmetry and molecular organization critical to genetic replication and transcription.

Used in biology textbooks, university lecture slides, science websites, and medical infographics to explain genetics, molecular biology, or biotechnology concepts. Targets students, educators, researchers, and general audiences seeking foundational knowledge of DNA structure.