Avermectins (AVM) are macrocyclic lactones which have potent antihelminthi

Question

Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of

Options:

A . Streptomyces avermitilis

B . B. thrunigiensis

C . P. flourescens

D . L. peruvianum

Answer: Option A

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