The toxin produced by the gene of Bacillus te | vedclass

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

Question

(B) The bacterium $Bacillus 	ext{ } thuringiensis$ $(Bt)$ produces protein crystals during a particular phase of their growth. These crystals contain

Vedclass · Accepted Answer

Mosquitoes

Vedclass · Answer

(B) The bacterium $Bacillus 	ext{ } thuringiensis$ $(Bt)$ produces protein crystals during a particular phase of their growth. These crystals contain a toxic insecticidal protein. The $Bt$ toxin protein exists as inactive protoxins but once an insect ingests the inactive toxin, it is converted into an active form of toxin due to the alkaline $pH$ of the gut, which solubilizes the crystals. The activated toxin binds to the surface of midgut epithelial cells and creates pores that cause cell swelling and lysis and eventually cause the death of the insect. This toxin is specific to certain groups of insects, including lepidopterans (tobacco budworm, armyworm), coleopterans (beetles), and dipterans (flies, mosquitoes). Therefore, it is effective against mosquitoes.

The toxin produced by the gene of $Bacillus \text{ } thuringiensis$ is effective against which of the following?

Similar Questions

The crops engineered for glyphosate are resistant/tolerant to

Bacillus thuringiensis $(Bt)$ strains have been used for designing novel:

What is the function of a terminator gene?

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

In India,the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

Vedclass Test Series

Exam Paper Generator

Online Exam Module