Zoology-Genetic Engineering

NEET Zoology Genetic Engineering MCQ Question

Type: MCQ-fact-Medium-Class 12

What is the process by which a recombinant DNA is inserted within the coding sequence of an enzyme, leading to the inactivation of that gene?

A

Insertional inactivation

B

Gene amplification

C

Transcriptional activation

D

Cloning vector insertion

Correct Answer

Option A

Detailed Explanation

Insertional inactivation occurs when a recombinant DNA is integrated into the coding sequence of a gene, such as for the enzyme β-galactosidase, resulting in the gene's inactivation. This process is crucial for selecting recombinant organisms in genetic engineering.

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