Name the gene that codes for Bt. toxin.

Bt toxin is

How are two short polypeptide chains of insulin linked together? Name the cry genes that control cotton and corn borer.

What is an inducible operon ? Name the genes that constitute an operon. Explain the lac operon of E.Coli with help of schematic representation.

Name the insect that attacks cotton crops and causes lot of damage to the crop. How has Bt cotton plants overcome this problem and saved the crop? Explain.

Write a note on Bt. Cotton.

Name the alternative form of gene

Bt gene is got from