Question

If both parents have brown hair because both carry two alleles for brown hair, their children will also have brown hair, but it might be a different shade of brown than either parent. Why is this? Isn't brown brown?

Answer 1

Hair color is determined by multiple genes and alleles inherited from both parents, resulting in variations in hair color within the same family.

Step-by-step explanation:

Eye color in humans is determined by multiple genes. Both parents having brown hair doesn't mean their children will have the exact same shade of brown. This is because hair color is determined by the combination of different genes and alleles inherited from both parents. Each individual inherits a unique combination of genes, which can result in variations in hair color within the same family.