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.
1 The remaining ashes were tested for DNA and were determined to be from a male, not a female. 2  Cremated remains didnât contain human DNA: A family goes to a local funeral home in Florida to retrieve the cremated remains of their mother that passed away of cancer.owever, the outcome of the DNA test will depend upon how the body was cremated. Private Lab Results prides itself on providing accurate, professional lab testing for cremated remains (ashes). Testing ashes for the presence of DNA (Each DNA case is different, please call for pricing) 1-800-908-9117.