Why is $B t$ toxin not toxic to human beings?
Why is $B t$ toxin not toxic to human beings?
- A
The toxin recognises only insect specific targets
- B
Bttoxin activation requires temperature above the human body temperature
- C
Bttoxin formation froms pro Btstate which requires $pH$ lower than one present in human stomach
- D
Conversion of pro Bt to Btstate takes place only in highly alkaline condition
Similar Questions
Given below are two statements:
Statement $I$ : Bt toxins are insect group specific and coded by a gene cry $IAc$.
Statement $II$ : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $\mathrm{pH}$ of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements:
Statement $I$ : Bt toxins are insect group specific and coded by a gene cry $IAc$.
Statement $II$ : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $\mathrm{pH}$ of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:
- [NEET 2024]
Which bacteria was the first to be used as biopesticide on the commercial scale in the world?
Which bacteria was the first to be used as biopesticide on the commercial scale in the world?
The crops having cry genes needs
The crops having cry genes needs
Bt toxin protein crystals present in bacterium Bacillus thuringiensis, do not kill the bacteria themselves because
Bt toxin protein crystals present in bacterium Bacillus thuringiensis, do not kill the bacteria themselves because
Some of the characteristics of $Bt$ cotton are
Some of the characteristics of $Bt$ cotton are
- [AIPMT 2010]