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Question

Protein in silk thread is ___.

A
fibroin
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B
keratin
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C
albumin
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D
globulin
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Solution

The correct option is A

Fibroin:

  1. ​Fibroin is the protein present in silk thread.
  2. They are large complex proteins and makes up different types of silk.
  3. It is composed of the amino acids like glycine, alanine, and serine in different percentages.
  4. It provides robust mechanical strength with high tensile strength, stiffness and extensibility.


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