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Hair Texture
/genetics/hair-texture
Dominant to recessive
Coily · Dominant
Shows up if even one parent passes it on. No extra shades - it's on or off.
Curly · Middle
Shows when no more-dominant version is inherited. No extra shades - it's on or off.
Wavy · Middle
Shows when no more-dominant version is inherited. No extra shades - it's on or off.
Straight · Recessive
Both parents must pass it on for a child to show it. No extra shades - it's on or off.
Inheritance
What will my child inherit?
Coily is dominant: a child shows it whenever at least one parent passes on the gene.
Straight is recessive: a child only shows it when both parents pass it on.
Two Coily parents can still have a Straight child - if both quietly carry the Straight gene, it can surface.
Two Straight parents always have Straight children.