Home
Class 12
BIOLOGY
Assertion: A gene from bacillus thuringi...

Assertion: A gene from bacillus thuringiensis is incorporated in plant genome to increases yeild.
Reason : it is Bt toxin producing genw which kills larvae of insects.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
In the commercialized transgenic Bt cotton plants the protein is expressed in all parts of the plant. When the larvae feed on Bt plant they ingest Bt protein along with plant tissue. The Bt protein gets activated in the midgut. The activated molecules bind themselves to certain receptor on gut membrane of insect and kill it.
Promotional Banner

Similar Questions

Explore conceptually related problems

Insect tolerant gene from Bacillus thuringiensis is introduced using Ti plasmid of

Isolation of Bt gene from bacterium Bacillus thuringiensis was undertaken in year

Isolation of Bt-gene from bacterium (Bacillus thuringiensis) was taken up in the year:

Assertion: Bacillus thuringiensis is not killed by its own toxin Reason :Bt toxin protein exist as inactive protoxins

Bt toxin produced by Bacillus thuringiensis does not kill the producer because the toxin is

Bt toxin genes are isolated from Bacillus thuringiensis and incorporated into crop plants making them insecticidal. The choice of genes depend upon

Assertion : Plants having gene from Bacilus thuringiensis are resistant to insects Reason : Theso transgenic plants have receptors which convert protoxin into active toxin.