Q58 / 180 · NEET 2026 (Cancelled) · Botany

The toxin proteins, isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively ?

  • Correct answer
    A
    cryIAc and cryIAb
  • B
    cryIAc and cryIIAb
  • C
    cryIIAb and cryIAc
  • D
    cryIAc and cryIIIAb

Solution

The toxin proteins encoded by the genes $cryIAc$ and $cryIIAb$ control the cotton bollworms.

The toxin protein encoded by the gene $cryIAb$ controls the corn borer.

Therefore, the genes that control cotton bollworms and corn borer respectively are $cryIAc$ and $cryIAb$.

Answer: cryIAc and cryIAb

Hence, the correct answer is option: 'A'.