Question

The silk fibres are held together in cocoon by a substance known as

A Sericin Correct Answer Incorrect Answer
B Cement Correct Answer Incorrect Answer
C Glue Correct Answer Incorrect Answer
D Fibroin Correct Answer Incorrect Answer
E None Correct Answer Incorrect Answer

Solution

The silk fibres are held together in cocoon by a substance known as sericin which is secreted by middle gland of the salivary gland (silk glands) of silk worm.

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