TITLE

Milk Tolerance Gene

PUB. DATE
March 2007
SOURCE
Science & Children;Mar2007, Vol. 44 Issue 7, p8
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The article informs on the discovery of genetic mutations in East Africans that are associated with the ability to digest milk like adults by an international team of scientists led by Sarah Tishkoff, a researcher in the University of Maryland, Baltimore. A study of DNA revealed that the mutations evolved at the time in history when some Africans were beginning to raise cattle. The findings reveal a striking genetic footprints of natural selection ever observed in humans. While, the researchers think that human adults cannot digest milk, it takes a genetic mutation to enable humans to tolerate lactose. The research of Tishkoff solved the mystery of why some African people who raise cattle and successfully digest milk do not have the mutation that allows Europeans to digest milk.
ACCESSION #
24252426

 

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