The swirls and whorls of your hairline come from multiple genes

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The swirls and whorls of your hairline come from multiple genes
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Blame grandma for that weird thing your hair does.

, the team used data on scalp hair whorls among 2,149 individuals from the China’s National Survey of Physical Traits cohort and was followed by a replication study of 1,950 individuals from the Taizhou Longitudinal Study cohort.

They found four associated genetic variants that are likely candidates for influencing hair whorl direction. They potentially do this by regulating the cell polarity of hair follicles, with closure of cranial neural tube growth within it also potentially playing a role.“The prevailing opinion was that hair whorl direction is controlled by a single gene, exhibiting Mendelian inheritance.

“Although we still know very little about why we look like we do, we are confident that curiosity will eventually drive us to the answers,” Wang concluded. Laura is a science news writer, covering a wide variety of subjects, but she is particularly fascinated by all things aquatic, paleontology, nanotechnology, and exploring how science influences daily life. Laura is a proud former resident of the New Jersey shore, a competitive swimmer, and a fierce defender of the Oxford comma.

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