the filaments secreted by silkworm are made of a
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fibroin protein
The silkworms are fed with mulberry leaves, and after the fourth moult, they climb a twig placed near them and spin their silken cocoons. The silk is a continuous filament comprising fibroin protein, secreted from two salivary glands in the head of each worm, and a gum called sericin, which cements the filaments.
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the filaments secreted by silkworm are made of a
fibroin protien
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