![The gum present in the raw mulberry silk fibre is](https://www.gkseries.com/blog/wp-content/uploads/2023/09/The-gum-present-in-the-raw-mulberry-silk-fibre-is.jpg)
Q. The gum present in the raw mulberry silk fibre is
(A) Sericin (B) Fibroin (C) Keratin (D) Casein
Ans: Sericin
Sol:
The outer layer of silk filament is a form of gum, or silk glue, called sericin. These two elements are present in the fibre in the proportion of about 75 parts fibroin to 25 parts Sericin.