The team used a statistical model of T cell receptor formation to analyze receptor DNA sequences in blood samples from adult pairs of identical twins. (sciencedaily.com)
Scientists try to detect genetic influence by comparing cancer rates in pairs of identical twins — who share all the same genes — with occurrence in fraternal twins, who share, on average, 50 % of their genes. (sciencemag.org)
And when he performed CAT scans on pairs of identical twins with and without the disease — including Steven and David Elmore — he saw that schizophrenics» brains had less tissue and larger fluid - filled ventricles. (discovermagazine.com)