File:CRISPR-The-Cas9-enzyme-cuts-both-strands-of-DNA-f6a20bf4.jpg

The Cas9 enzyme cuts both strands of DNA at the target site; the cell's repair pathway then determines whether the gene is disrupted (NHEJ) or precisely rewritten (HDR).

AI-generated illustration for CRISPR, made with fal.ai (fal-ai/flux-2-pro).

Prompt: A molecular-level depiction of the CRISPR-Cas9 mechanism, showing a guide RNA strand threading through the interior of the Cas9 protein and annealing to a complementary sequence on a double-stranded DNA helix, with the double-strand break clearly indicated at the cut site where the two DNA strands are severed. Two branching pathways emerge from the break: one showing imprecise rejoining with small insertions and deletions representing NHEJ, and the other showing precise repair guided by a donor DNA template representing HDR. Style: Detailed digital illustration blending technical schematic linework with painterly atmospheric rendering, as if a scientific textbook were reimagined by a noir graphic novelist. Colour palette of deep midnight blue, charcoal black, and slate grey as foundations, accented with electric teal, bioluminescent green, and cold amber. Lighting is dramatic and directional, suggesting surveillance or laboratory environments — pools of cold light against deep shadow, with occasional glowing circuit-trace highlights. Compositions favour tight framing with layered depth: foreground technical detail dissolving into abstracted background geometry. Detail level is high but purposeful, prioritising legible structure over decorative complexity. Mood is clinical yet ominous, precise yet unsettling. No text, lettering, captions, logos, watermarks or borders unless it is a technical drawing.