Question
Percentage composition of fibroin and sericin in silk is
50 : 40
80 : 20
30 : 70
40 : 60
Solution
B.
80 : 20
Percentage composition of fibroin and sericin in silk is 80 : 20. Sericin is a gelatinous protein that cements the two fibroin filaments in a silk fiber.