THE DNA USA VOLUNTEERS

Self-declared ancestries with the highest proportion in each county within the forty-eight contiguous states. Redrawn from results of the 2000 census.

THE DNA USA CHROMOSOME PORTRAITS GALLERY

Chromosome portraits showing the ancestral origin (green: African; blue: European; and orange: Asian/Native American) of DNA segments within the twenty-two autosomes of twenty contributors and volunteers. Fuller details are in the text. Asterisks indicate pseudonyms.

All images © 2012 23andMe, Inc.

Locations of 146 important genes involved in eleven body systems superimposed on the chromosome portrait of Mark Thompson and showing their ancestral origins (green: African; blue: European; and orange: Asian/Native American). Where locations have two colors, Mark has inherited genes with different origins from his parents. Details of each gene are in the appendix.

All images © 2012 23andMe, Inc.