Abstract Note
The article reports that a 15-year-old boy rubbed a swab along the inside of his cheek, popped it into a vial and sent it off to an online genealogy DNA-testing service. His mother had conceived using donor sperm and he wanted to track down his genetic father. The teenager tracked down his father from his Y chromosome. The Y is passed from father to son virtually unchanged, like a surname. Though his donor had been anonymous, his mother had been told the man's date and place of birth and his college degree. Using another online service, Omnitrace.com, he purchased the names of everyone that had been born in the same place on the same day.