Is unibrow dominant or recessive?
James Williams
Updated on April 20, 2026
In humans, the gene that causes a unibrow (u) is recessive to not connected eyebrows (U); the gene for thick lips (T) is dominant over the gene for thin lips (t).
Is a unibrow genetic?
Genetics. The unibrow is a genetic trait. It is associated with the PAX3 gene.What gene causes unibrow?
We identified the gene PAX3 as the monobrow gene. It has previously been shown to to control where in the face “nasion” is located – the point at the middle of two eyebrows. So it is reasonable to see it associated with monobrow, too, which is hair covering that part.Is having a unibrow rare?
Having a unibrow is less common than having 2 brows, so it's a truly unique facial feature that not everyone has.Why do girls have unibrow?
“We couldn't tell how bushy the eyebrows of women were, because normally women sort of change that,” he says. But one gene in particular—called PAX3—was associated with the unibrow. “It basically means that alleles of these genes increase the chances that you have or you don't have this feature,” he says.Are Your Traits Dominant?
What country has the most unibrows?
DUSHANBE, Tajikistan — If you search for “unibrow,” Google will return about 200,000 results, the bulk of them devoted to tips on removing what in the West has become synonymous with unattractiveness.Can unibrows go away?
Laser hair removalThe process works by directing laser light beams at the unibrow area to prevent future hair growth. Results are supposed to be permanent, but in reality, the procedure decreases the rate of hair growth. As with electrolysis, you may need a few initial follow-up sessions.