DNA Double Helix Structure Diagram | Molecular Biology Visual #239364 (License: Personal Use)

The image displays two distinct DNA double helix models against a white background: the left helix represents the common right-handed B-DNA form with green bases and blue sugar-phosphate backbones, while the right helix shows an alternative conformation-possibly A-DNA or Z-DNA-with brown bases and red/pink backbones, emphasizing variations in helical twist and groove geometry. Both are rendered in 3D wireframe style to clarify base pairing and backbone orientation. These visualizations aid in understanding how DNA conformation affects gene expression and protein binding.

Used in biology textbooks, university lecture slides, science outreach websites, and medical infographics to explain nucleic acid structure, genetic replication, or molecular diagnostics. Matches user intent for educational visuals, academic reference, or STEM content creation.