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10.Biotechnology and its Application
normal
Cry $II$ Ab and cry $I$ Ab produce toxins that control
A
Cotton bollworms and corn borer respectively
B
Corn borer and cotton bollworms respectively
C
Tobacco budworms and nematodes respectively
D
Nematodes and tobacco budworms respectively
Solution
Bt toxin is coded by a gene named Cry. There are a number of them, e.g, the proteins encoded by the genes Cry $I$ Ab and Cry $II$ Ab control the cotton bollworms, that of Cry $1$ Ab controls corn borer:
Standard 12
Biology