What are Cry proteins? Name an organism that produce it. How has man exploited this protein to his benefit?

What are Cry proteins?Name an organism that produces them.How has man exploited the proteins to his benefit?

What is 'Bt' toxin? Name an organism that produces it? How has man exploited it?

What are proteins ?

What are globular proteins?

What is gene for protein?

What are recombinant proteins?