The human protein named α$\alpha$-1-antitrypsin, obtained from transgenic animals, is used for the treatment of:

Related Formula

aligned Cotton Bollworms &arrow cryIAc and cryIIAb Corn Borer &arrow cryIAb aligned$\begin{aligned} \text{Cotton Bollworms} &\rightarrow cryIAc \text{ and } cryIIAb\\ \text{Corn Borer} &\rightarrow cryIAb \end{aligned}$

Core Logic

The specific Bt toxin genes encoded by Bacillus thuringiensis are insect group specific:

• Genes cryIAc$cryIAc$ and cryIIAb$cryIIAb$ control cotton bollworms.
• Gene cryIAb$cryIAb$ controls corn borer.

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

Step 1: Option Matching

Matches with Option (3): cryIAc$cryIAc$ and cryIAb$cryIAb$.

Pattern Recognition

Sees: "cotton bollworms and corn borer genes". Shortcut: Cotton bollworm = cryIAc$cryIAc$/cryIIAb$cryIIAb$; Corn borer = cryIAb$cryIAb$.

Chapter Mix

Class 12 Biology: Biotechnology and its Applications