Cry1 endotoxin obtained from Bacillus thuringiensis is effective against?
A
Nematodes
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Flies
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Mosquitoes
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Boll worms
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D
Boll worms
The correct option is D.
Explanation of Correct option:
Bacillus thuringiensis secrete a protoxin called crystalline (Cry) protein.
Once ingested by a target insect, the Cry protein gets activated which leads to the binding of it to the specific receptors located in the insect midgut epithelial cells creating pores that eventually lead to the death of the insect.
The cotton bollworm is regulated by the proteins encoded by genes cry I Ac and cry II Ab.
Nematodes, flies, and mosquitoes can be killed using pesticides and drugs.
Final answer: Cry 1 endotoxins obtained from Bacillus thuringiensis are effective against Boll worms.