Crystalline protein synthesized by Bacillus t | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) $Bacillus$ $thuringiensis$ $(Bt)$ produces insecticidal crystalline proteins called $Cry$ proteins in an inactive protoxin form.These crystals rem

Vedclass · Accepted Answer

Alkaline $pH$ in insect mid-gut

Vedclass · Answer

(D) $Bacillus$ $thuringiensis$ $(Bt)$ produces insecticidal crystalline proteins called $Cry$ proteins in an inactive protoxin form.These crystals remain inactive in the bacterium because the $pH$ of the bacterial cytoplasm is neutral.When an insect ingests the $Bt$ crystals,the alkaline $pH$ of the insect's mid-gut solubilizes the crystals and activates the toxin.The activated toxin then binds to the surface of mid-gut epithelial cells,creating pores that cause cell swelling and lysis,eventually leading to the death of the insect.

Crystalline protein synthesized by $Bacillus$ $thuringiensis$ is activated by

Similar Questions

Golden rice is a transgenic crop of the future with which of the following improved trait?

$RNA$ interference,which is employed in making tobacco plants resistant to $Meloidogyne \ incognita$,is essentially involved in:

Cry proteins are obtained from $......$.

$A$ transgenic plant is one that:

Bacillus thuringiensis has been used to kill certain insects such as
$(a)$ Tobacco budworm
$(b)$ Army worm
$(c)$ Beetles
$(d)$ Flies
$(e)$ Mosquitoes

Vedclass Test Series

Exam Paper Generator

Online Exam Module