NEETZoologyBiotechnology and Its Applications
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Biotechnologists introduce the genes cryIAc and cryIIAb into cotton plants to protect the crop from cotton bollworms. Reason (R): The toxin protein encoded by the gene cryIAb is highly effective in controlling the corn borer. In the light of the above statements, choose the most appropriate answer
Options
- ABoth Assertion (A) and Reason (R) are correct and Reason (R) is the correct explanation of Assertion (A)
- BBoth Assertion (A) and Reason (R) are correct but Reason (R) is not the correct explanation of Assertion (A)
- CAssertion (A) is correct but Reason (R) is not correct
- DAssertion (A) is not correct but Reason (R) is correct
Correct answer
B. Both Assertion (A) and Reason (R) are correct but Reason (R) is not the correct explanation of Assertion (A)
Step-by-step solution
Assertion (A) is correct because the proteins encoded by the genes cryIAc and cryIIAb specifically control cotton bollworms, making them the correct choice for developing pest-resistant cotton crops. Reason (R) is also correct as the gene cryIAb encodes a toxin that specifically controls the corn borer. However, Reason (R) does not explain Assertion (A). The correct explanation for Assertion (A) would be that cryIAc and cryIIAb produce toxins that are lethal specifically to cotton bollworms. The fact that a differe