The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively?
- cryIAc and cryIIAb
- cryIAc and cryIIIAb
- cryIAc and cryIAb
- cryIIAb and cryIAc
Answer
(3) cryIAc and cryIAb
Solution
Proteins coded by cryIAc and cryIIAb control cotton bollworms.
The protein coded by cryIAb controls the corn borer.
So the pair is cryIAc (cotton bollworm) and cryIAb (corn borer).
Answer: (3)