Q-Banding: Fluoroescent staining of chromosomes

    Staining of chromosomes with Quinacrine gives bands that fluoresce on exposure to UV light. The patterns can be correlated with G-bands. A disadvantage of the technique is that the fluorescent intensity fades rapidly, thus observations and photographs must be made within a few minutes of staining.

Figure © 2000 by Griffiths et al. ; text © 2008 by Steven M. Carr