Question

From which of the following does the basic structure of hair and nails form?

a.
sweat
c.
collagen
b.
melanin
d.
keratin

Answer 1

Answer: D. Keratin

Explanation: Keratinocytes (pronounced: ker-uh-TIH-no-sites) make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.