Fig. 6. Karyotype.

Microscopic examination of chromosome size and banding patterns allows medical laboratories to identify and arrange each of the 24 different chromosomes (22 pairs of autosomes and one pair of sex chromosomes) into a karyotype, which then serves as a tool in the diagnosis of genetic diseases. The extra copy of chromosome 21 in this karyotype identifies this individual as having Down's syndrome.

Return to text

The Climate Change and Public Health Law Site
The Best on the WWW Since 1995!
Copyright as to non-public domain materials
See DR-KATE.COM for home hurricane and disaster preparation
See WWW.EPR-ART.COM for photography of southern Louisiana and Hurricane Katrina
Professor Edward P. Richards, III, JD, MPH - Webmaster