Down's Syndrome chromosomes
A micrograph of the chromosome set taken from a foetus showing signs of Down's syndrome. The technique used is called fluorescent in-situ hybridisation, where some of the chromosomes are tagged with fluorescent dyes and illuminated by UV light. These show that the karyotype carries 3 copies of chromosome 21, a cause of Down's syndrome and a marker for the disease.
Copyright © James King-Holmes. Copyright © James King-Holmes |PLUS|01-AA-662|
Photo size: 17.5 Mpixels (50 MB uncompressed) - 3850x4536 pixels (12.8x15.1 in / 32.6x38.4 cm at 300 ppi)