Bacillus  thuringiensis forms  the protein crystals,  which  contains  a toxic insecticidal
Channel: Doubtnut
Date: 2020-05-03

Bacillus  thuringiensis forms  the protein crystals,  which  contains  a toxic insecticidal  protein.  This  proein  I. is  activated  by alkaline pH  of  the gut  of the insect  pest.  II.binds with  the epithelial cells of the midgut  of  the  insect  pest  ultimately  killing  it.   III.does not kill  the carrier  bacterium  which is  itself  resistance to this toxin.  Which of the  statement given above are correct  ?