Sentences with phrase «regions of human hair»
Using a submicron X-ray beam and transmission electron microscopy, they were able to spatially resolve the local structure of the three main regions of human hair: medulla, cortex and cuticle.
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Further study showed that the region of human DNA that contained the single nucleotide change associated with blondness specifically affected the expression of KITLG only in hair follicles.
The laser energy is focused on a region with a diameter comparable to the width of a human hair.