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Rajat Awachat

· started a discussion

· 1 Months ago

donald trump (Question: 185953.0 )

i think it is keratine its fibreous...(help of hair fiber tissue)

Question:
The protein present in silk fibre is –
Options:
A) Casein
B) Keratin
C) Elastin
D) Fibroin
Solution:

Ans:(d) The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).

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