Which Freckles Gene Is Dominant?

Freckles are caused by genes and the sun. The freckle version of the MC1R gene is dominant over the non-freckle one. MC1R acts as a watchdog for cells, alerting them of harmful UV rays.

Is the freckle gene recessive or dominant?

Freckles commonly stop spreading before adolescence and last for life, but could sometimes be subtle in adulthood. They are transmitted as an autosomal dominant pattern (Brues, 1950).

What gene controls freckles?

Common variations (polymorphisms) in the MC1R gene are associated with normal differences in skin and hair color. Certain genetic variations are most common in people with red hair, fair skin, freckles, and an increased sensitivity to sun exposure.