An example of a polygenic trait is human skin color variation. Several genes factor into determining a person's natural skin color, so modifying only one of those genes can change skin color slightly or in some cases, such as for SLC24A5, moderately.
Case 1 â The Alleged Father has Recently Passed Away. If less than a week has passed since the deceased died, then if permission can be obtained, fingernail cuttings and a hair sample with root attached can be used to extract DNA samples to establish paternity. It is a more complex procedure than a buccal swab, but the DNA matching is just as accurate.
Thomas H. Clarke | April 18, 2013. WASHINGTON, DC â In a case that could have nationwide implications in the enforcement of marijuana impaired âdrugged drivingâ laws, the United States Supreme Court ruled Wednesday that states can not routinely compel drivers to submit to a blood test in drunk driving cases without consent and without a warrant.