Forum > Birds In The News > Geneticist Solves Long-standing Finch Beak Mystery

 
Webmaster Posted 19-Nov-2018 06:41
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From Science Daily and Guardian on 19-Nov-2018 06:41

Biologist have compared the genes of large-beaked Cameroonian finches to those of their smaller-beaked counterparts, found the answer to a 20-year old mystery: 300,000 base pairs, apparently inherited as a unit, always varied between them, and right in the middle of that genetic sequence was the well-known growth factor, IGF-1.


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