Abstract:: Present research work deals with evaluation of clastogenic and cytotoxic effects of Dichlorvos using larval salivary gland polytene chromosomes of Drosophila melanogaster. Exposure limit, LC 20 , was standardized by considering mortality of second instar larvae exposed to serial dilution of selected insecticide, for 24 hours. Subsequently, third instar larvae were sacrificed for temporary squash preparation of polytene chromosome, along with controls. The structural chromosomal aberration in treated stocks w… Show more
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