The FOXP2 gene which is
implicated in human speech and language proficiency does exists in both humans
and chimps. But the version of this gene in each of the species not only looks different but functions
differently too. A mutation that happened over half million years ago (a substitutions
of two amino-acids) was the responsable
of distinguishing the human FOXP2 protein from
that found in chimpanzees. Evidence from genetically manipulated mice and human
neuronal cell models suggests that these changes affect the neural functions of
FOXP2.
Last findings, raise the possibility that the humanized FOXP2 phenotype reflects a different tuning of corticostriatal systems involved in declarative and procedural learning, a capacity potentially contributing to adapting the human brain for speech and lenguage acquisition.
Discovery news
September,19.
Video: Why cant chimps speak?
What would
happen if a mutation like ours occurred in chimps as well? Could it be possible a communication between
us? FOOD FOR THOUGHT!
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