[A] : Keratin is one of a group of fibrous in- soluble proteins (scelero proteins) found in
Channel: Doubtnut
Date: 2020-05-03

[A] : Keratin is one of a group of fibrous in- soluble proteins (scelero proteins) found in ectodermal cells of animals, as in hair, horns and nails. Leather is almost pure keratin.   [R]: Cornification is a process occurring in vertebrate epidermis and epidermal struc- tures in which keratin replaces the cytoplasm of a cell.