Question

Commercial silk is obtained from

• A. Cocoon
• B. Caterpillar
• C. Adult moth
• D. Both egg and adult moth

Answer 1

The correct option is A Cocoon

Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. Commercial silks originate from reared silkworm pupae, which are bred to produce a white-coloured silk thread with no mineral on the surface. The pupae are killed by either dipping them in boiling water before the adult moths emerge or by piercing them with a needle

So, the correct answer is 'Cocoon'