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Several other family members have auburn hair as well.
People who have more eumelanin with a corresponding phenotype of darker hair and the MC1R gene often have auburn hair.
Human molecular genetics.
Source What Is a Genetic Mutation?
Genetics of Red Hair
Will our children all have a variance of red hair--auburn, strawberry, red or orange?
I am the only red head in my family so I am wondering what caused my hair color.
In the second case, one parent would be blonde but carry a recessive gene for redness and the other parent would be a redhead.
Could she have the MC1R mutation even though she is blonde?
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It tells our cells what do do as we develop.
Genetic mutations are the result of a change or a 'misfire' in our DNA.
Scientists have declared that red hair is a genetic mutation of sorts that occurs in less than three percent of the entire human population.
Blond hair is also a genetic mutation believed to have first occurred about 11, years ago.