Question

A protein substance, which is the chief component of wool fibres, is (a) elastin. (b) keratin. (c) collagen. (d) casein

Answer 1

Keratin is the right answer.

Answer 2

Here is your answer mate

Keratin is the correct answer

Keratin is one of a family of fibrous structural proteins known as scleroproteins. α-Keratin is a type of keratin found in vertebrates. It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, calluses, and the outer layer of skin among vertebrates

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