How is it possible that some Caucasian people have very curly hair

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Is it rare if you have natural curly hair (woman)? - Quora

Are white people with naturally curly hair part African? - Quora

What race or ethnicity does curly hair come from? - Quora

Is curly hair considered an African hair or a Middle Eastern hair? - Quora

Is curly hair considered an African hair or a Middle Eastern hair? - Quora

Why do most Arabs have curly hair? - Quora

Are Americans born with straight hair? - Quora

Which race/ethnicities tend to have certain hair textures (curly, straight, wavy hair)? - Quora

How can an Irish Caucasian woman have Afro style hair? Does it mean she must have unknown African ancestors? Is there a gene that codes for the hair type? - Quora

Is curly hair common in Mexico? - Quora

How is it possible that some Caucasian people have very curly hair? - Quora

Do all people with curly hair have black ancestors, even if they're white or blond? - Quora

Can white people have thick/coarse hair without it indicating African admixture? - Quora

Why do people consider Latinos who have 3b curly hair and deep tan skin Afro-Latin? - Quora