Boleh dibilang tiap hari ahli berbagai bidang ilmu pengtahuan melengkapi dan 
menyempurnakan teori Darwin..

Dan masih ada orang beragama yang dungu-dungu kayak anjing yang bilagn teori 
Darwin itu salah.




Experts unveil African gene study

A group of scientists have unveiled what they say is the most comprehensive 
study ever of African genes.

Published following a decade of study, the researchers say their findings give 
new insight into the origins of humans.

The first humans probably evolved near the South Africa-Namibia border before 
migrating north, the study says.

Published in the US journal Science, it aims to teach Africans on population 
history and aid research into why diseases hit particular groups.

The scientists examined genetic material from 121 African populations, as well 
as four African-American populations and 60 non-African populations.

'Benefit Africans'

The results provided "novel insights about levels and patterns of genetic 
diversity in Africa, a region that has been under-represented in human genetic 
studies", said Sarah Tishkoff, a geneticist from the University of Pennsylvania.

The first humans most likely evolved near the South Africa-Namibia border, the 
team said, and migrated north out of the continent via the Red Sea.

Researchers had identified 14 ancestral population clusters "that correlated 
with ethnicity and shared cultural and/or linguistic properties", they said.

They found high levels of mixed ancestry in most populations, as well as 
evidence showing common ancestry in geographically diverse groups.

The study also looked at African-American populations, finding that almost 
three-quarters could trace their ancestry to West Africa.

This knowledge could help experts better understand why certain diseases impact 
on African-American populations, researchers said.

Dr Tishkoff said that the goal was to "benefit Africans, both by learning more 
about their population history and by setting the stage for future genetic 
studies, including studies of genetic and environmental risk factors for 
disease and drug response".
Story from BBC NEWS:

Published: 2009/04/30 23:10:31 GMT


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