Tooth to determine sex

The Whole Tooth: New Method to Find Biological Sex From a Single Tooth (image)

Tooth to determine sex
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Female teeth feature amelogenin-X, while male teeth contain amelogenin produced via both the X and Y chromosomes.

Tooth to determine sex
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Using the advanced imaging technique known as mass spectrometry, researchers at the University of California, Davis were able to measure amelogenin proteins on a variety of fossil teeth.

Tooth to determine sex
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In the lab, scientists tested for protein traces on dozens of human teeth, ranging from 100 to 7,300 years old.

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