Get Answers to all your Questions

header-bg qa

Assertion: Bacillus thuringiensis produces a specific protein that selectively kills lepidopteran insects.

Reason: During a specific growth phase, Bacillus thuringiensis forms active protein crystals that contribute to its insecticidal properties against lepidopteran insects.


 

Option: 1

Both Assertion & Reason are True &the Reason is a correct explanation of the Assertion.


Option: 2

Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.


Option: 3

Assertion is True but the Reason is False.

 


Option: 4

Both Assertion & Reason are false.


Answers (1)

best_answer

Bacillus thuringiensis (Bt) does produce a specific protein known as Bt toxin, which is toxic to lepidopteran insects (moths and butterflies). This protein selectively targets and kills these insects while being harmless to other organisms, including humans and most other insects.

The reason provided is also true. During a specific growth phase, Bacillus thuringiensis forms protein crystals that contain the Bt toxin. These crystals contribute to the insecticidal properties of Bacillus thuringiensis against lepidopteran insects. When the insects consume these crystals, the Bt toxin is activated in their digestive system, leading to the death of the insects.

Hence, the correct answer is option 1. 

Posted by

vinayak

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks