Advertisements
Advertisements
प्रश्न
Why does Bt toxin not kill the bacterium that produces it, but kill the insect that ingests it?
Advertisements
उत्तर
Bt toxin is produced by a soil bacterium called Bacillus thuringiensis. This toxin does not kill the bacteria because when it is present in the bacteria, it is in an inactive and crystalline form.
It becomes active and toxic when it is consumed by insects such as such as lepidopterans (armyworm), coleopterans (beetles) and dipterans (flies/ mosquitoes).
The activated toxin (delta endotoxins) binds to the epithelial cells in the midgut of an insect and creates pores that cause lyses and swelling, eventually killing the insect.
APPEARS IN
संबंधित प्रश्न
Can you suggest a method to remove oil (hydrocarbon) from seeds based on your understanding of rDNA technology and the chemistry of oil?
Describe the steps that are followed during secondary treatment of sewage.
Mention the number of primers required in each cycle of PCR. Write the role of primers and DNA polymerase in PCR. Name the source organism of the DNA polymerase used in PCR.
Due to which of the following reasons insulin extracted from pancreas of slaughtered animals cannot be used in humans to treat diabetes?
Which of the following is not an application of PCR (Polymerase Chain Reaction)?
The Adenosine deaminase deficiency results in ______.
Why is it that the line of treatment for a genetic disease is different from infectious diseases?
Who was the first patient who was given gene therapy? Why was the given treatment recurrent in nature?
Give a reason for the following:
Streptokinase is administered to the patients having myocardial infarction.
Name the technique used to detect the presence of HIV in the body of an individual, Justify the principle associated with this technique.
