Question

The inserted normal gene takes over the function of _________ gene.

(a) correct

(b) right

(c) non-functional

(d) functional

I have been asked this question during an interview for a job.

This intriguing question comes from Biotechnological Applications in Medicine: Gene Therapy in section Biotechnology and its Applications of Biology – Class 12

Answer 1

The correct choice is (c) non-functional

To explain I would say: In gene therapy, the inserted normal gene takes over the function of the non-functional gene. This non-functional gene is also called as an incorrect or mutant gene. This change in function is useful in successfully curing of the disease.