RE-NEET 2026 Zoology Recombinant DNA Technology Assertion Reason Question
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: In recombinant DNA technology, lysozyme is used for disrupting bacterial cells while cellulase is for plant cells. Reason R: Isolation of genetic material needs disruption of cells. In the light of the above statements, choose the most appropriate answer from the options given below:
Both A and R are correct but R is not the correct explanation of A
A is correct but R is not correct
A is not correct but R is correct
Both A and R are correct and R is the correct explanation of A
Correct Answer
Detailed Explanation
The correct answer is D because both statements are accurate and the reason provided explains the assertion. In recombinant DNA technology, lysozyme effectively disrupts bacterial cell walls, while cellulase is used to break down plant cell walls. This disruption is essential for isolating genetic material, as intact cells would prevent access to the DNA. Thus, the reason (R) directly supports the assertion (A) by explaining why cell disruption is necessary for genetic material isolation.
The other options fail because they either incorrectly state that one of the assertions is wrong or misinterpret the relationship between the assertion and the reason.
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