Researchers have identified a variant in the gene TBX1 as key in the development of the unique morphology at the base of the skull. TBX1 is present at higher levels in humans than in closely related hominins. Low TBX1 also occurs in certain genetic conditions causing altered skull base morphology.
This study provides a greater understanding of human disease and evolution., have unique features compared with other closely related hominin species and primates, including the shape of the base of the skull. The evolutionary changes underlying these features were significant in allowing the evolution of our increased brain size.
The development of the basicranial region, the base of the skull where it joins the bones of the neck, was key in the evolution of, as we developed a highly flexed skull base that allowed our increased brain size. Therefore, variants that affect the development of this region are likely to have been highly significant in our evolution.
The identification of this genomic variant sheds light on human evolution, as well as providing insight into common genetic conditions associated with lower expression of theResearchers have discovered a suite of genes that influence head shape in humans. These findings help explain the diversity of human head shapes and may also offer important clues about the genetic ...
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