Fig. 3.

Gel electrophoresis of 469 bp fragment of cyt 2B gene of the six most toxic Bt isolates, where 1, 2, 3, 4, 5 and 6 represent 6 Bt isolates viz GCU Bt 1, 2, 3, 4, 5 and GCU Bt 6 respectively while M stands for DNA marker.