People with lighter colored hair have melanin in which hair layer?

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Multiple Choice

People with lighter colored hair have melanin in which hair layer?

Explanation:
Melanin, the pigment that colors hair, is produced in pigment cells and becomes part of the keratin as the hair shaft forms. In lighter-colored hair, most of that pigment resides in the cortex, the thick middle layer that provides color and strength. The cuticle is the outer protective layer and is relatively transparent, carrying little to no pigment. The medulla, the central core, may be absent or sparse in lighter hair and does not determine the color. So, the color in lighter hair comes from melanin in the cortex only.

Melanin, the pigment that colors hair, is produced in pigment cells and becomes part of the keratin as the hair shaft forms. In lighter-colored hair, most of that pigment resides in the cortex, the thick middle layer that provides color and strength. The cuticle is the outer protective layer and is relatively transparent, carrying little to no pigment. The medulla, the central core, may be absent or sparse in lighter hair and does not determine the color. So, the color in lighter hair comes from melanin in the cortex only.

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