-----BEGIN PGP SIGNED MESSAGE----- Along the lines of Big Brother and your genomic heritage: No, the few cells left on your chair are not enough to provide a genomic map. Hair does, indeed, contain cells capable of being analyzed, in the follicles. PCR (polymerase chain reaction) is capable of analyzing a variety of genetic polymorphisms (genes that vary among the general population) from only a single cell. Thus you could be typed in a limited fashion and identified but not mapped. Small comfort, however, and PCR is becoming easier every day. For escaping DNA typing tests, I suggest carrying along some HeLa cell DNA (that will really screw up the test ;->. Scott G. Morham !The First, VACCINIA@uncvx1.oit.unc.edu! Second PGP Public Keys by Request ! and Third Levels ! of Information Storage and Retrieval !DNA, ! Biological Neural Nets, ! Cyberspace -----BEGIN PGP SIGNATURE----- Version: 2.6 iQCVAgUBLfvO9j2paOMjHHAhAQElBAQA2Q+NCsYT/RxcFzIaDyWh6jRpP1672BZW MvmRccSGKUyhIz54mC19cAaS6LuB1CxyMd2L52hn3eFwaxGbg1J/G3hIrJyCJ+Da ocJGG0cmdnl1Pg7coA3vT3IWDvv58/UHeZeKYgCEbckIQEGCmvKqqMdHd6yxz+K3 TYH75tQW6bU= =HWaa -----END PGP SIGNATURE-----