Bacillus thuringiensis produces insecticidal proteins that kill insects, belongs to -
(A). Dipterans
(B). Lepidopterans
(C). Coleopterans
(D). Ephimepterans
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A), (B) and (C) only
(A) Dipterans — Correct. Dipterans are the two-winged insects, the flies and mosquitoes. Some Bt toxins kill them.
(B) Lepidopterans — Correct. Lepidopterans are moths and butterflies. Their caterpillars, such as the tobacco budworm, armyworm and cotton bollworm, are killed by Bt toxins.
(C) Coleopterans — Correct. Coleopterans are the beetles. Bt toxins are also active against them.
(D) Ephimepterans — Incorrect. This name is not one of the insect groups that NCERT names for Bt toxins. The book gives only three: lepidopterans, coleopterans and dipterans.
NCERT Extract:
Biotechnological Applications in Agriculture – …
