送交者: 西乞术 于 2005-1-29, 18:49:00:
回答: Is there 犹太人特有的遗传标记? 由 fagus 于 2005-1-29, 16:44:00:
U.S. News and World Report (January 29, 2001). Excerpts:
"On the Internet, Carvin located Family Tree DNA, a small Houston firm created to answer such questions. He mailed in a sample of his DNA, gathered by swabbing the inside of his cheek, and waited. In late October, he got a call from Bennett Greenspan, president of Family Tree DNA. Not only did his Y chromosome have the cohanim markers-small genetic variations-but other markers matched with those of another man in the database, making it likely that they share a forefather within the past 250 years... Since then, other researchers have used the cohanim markers to ascertain that the Lemba, a Bantu-speaking people in Southern Africa who have traditionally claimed Jewish ancestry, do indeed have Semitic roots. And last June, Hammer published results showing that although Palestinian and Jewish men may be political foes, they are also brethren, so closely related as to be genetically indistinguishable."
遗传标记之中，有一些是单一族群独有的。但大多数是统计学意义上的，即某一族群中某个遗传标记出现的频率特别高。在後一种情况下，只有测定多个遗传标记後，才能做出比较有说服力的血缘鉴定。