NEET Biology Plant Growth And Development Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Question & Answer Discuss:

Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein :

(a) binds with epithelial cells of midgut of the insect pest ultimately killing it

(b) does not kill the carrier bacterium which is itself resistant to this toxin

(c) is coded by several genes including the gene cry

(d) is activated by acid pH of the foregut of the insect pest