Which proteins are present in silk threads and in what proportions?

  • A
    Fibroin $70-80 \%,$ Sericin $20-30 \%$
  • B
    Fibroin $75-80 \%,$ Sericin $20-25 \%$
  • C
    Fibroin $75-85 \%,$ Sericin $15-25 \%$
  • D
    Fibroin $20-25 \%,$ Sericin $75-80 \%$

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