$A$ : Bt toxin are protein crystals containing insecticidal protein
$R$ : B. thuringiensis forms these protein crystals throughout continuously during their growth period.

The use of bioresources by multinational companies and other organisations without proper authorisation from the countries and people concerned without compensatory payment is called

Gene therapy in humans was first practiced by Blease and Andresco to cure

Repeated transfusions of genetically modified cells are required in $SCID$ patients and in enzyme replacement therapy because