29.5 MB (2.0 MB compressed)
2913 x 3543 pixels
24.6 x 30.0 cm ⏐ 9.7 x 11.8 in (300dpi)
JAMES HOLMES / CELLMARK DIAGNOSTICS / SCIENCE PHOTO LIBRARY JAMES HOLMES / CELLMARK DIAGNOSTICS / SCIENCE PHOTO LIBRARY
DNA fingerprints. Scientist studying DNA autoradiograms (X-ray films) on a lightbox. The pattern of bands is obtained by electrophoresis of fragments of an individual's DNA in an agarose gel amp;amp;& is unique to that individual, forming a type of genetic "identity card". Because some bands are shared by related people, such as a parent & child, DNA fingerprints can be used to prove conclusively whether people are related, for instance in cases of disputed paternity. The technique is also used to identify & convict criminals from blood, hair, sperm or other tissue left at the scene of a crime. MODEL HANNAH.
Model release available. Property release not required.