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Question : What are the various races of Bombyx mori.

Answer»

Solution :On the basis of the moults they undergo in the larval STAGE, B. mori is divided into three RACES.
They are:
1. Tri moulters - 3 moults
2. Tetra moulters - 4 moults
3. Penta moulters - 5 moults
On the basis of voltinism (the NUMBER of broods raised PER year), three kinds of races are recognised. They are:
1. Univoltines - ONE brood only
2. Bivoltines -two broods only
Mutlivoltines - more than two broods


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