Multiple choice

Alpha Keratin is a protein present in

  1. skin

  2. eggs

  3. blood

  4. wool

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alpha-keratin is a fibrous structural protein found in hard keratinized tissues like wool, hair, nails, horns, and the outer layer of skin. It is not present in eggs, blood, or as the primary component of skin.