In lighter colored hair, melanin is located only in which layer?

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Multiple Choice

In lighter colored hair, melanin is located only in which layer?

Explanation:
Melanin pigment is produced in melanocytes at the hair bulb and deposited mainly in the cortex, the middle layer that contains the bulk of the hair’s pigment. In lighter colored hair, the pigment stays confined to the cortex, so melanin is located there only. The cuticle is the outer protective layer and normally doesn’t contain pigment, while the medulla (the central core) may be unpigmented or absent in lighter hair.

Melanin pigment is produced in melanocytes at the hair bulb and deposited mainly in the cortex, the middle layer that contains the bulk of the hair’s pigment. In lighter colored hair, the pigment stays confined to the cortex, so melanin is located there only. The cuticle is the outer protective layer and normally doesn’t contain pigment, while the medulla (the central core) may be unpigmented or absent in lighter hair.

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