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What helps in identifying the successful transformants?

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in Biology – Class 12 by (271k points)
What helps in identifying the successful transformants?

(a) Ori

(b) Viruses

(c) Selectable markers

(d) Enzymes

I had been asked this question during an internship interview.

My doubt is from Tools of Recombinant DNA Technology: Cloning Vectors topic in chapter Biotechnology Principles and Processes of Biology – Class 12

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Right option is (c) Selectable markers

To explain I would say: A selectable marker is a gene that helps in identifying successful transformants. They eliminate the growth of non-transformants and favor the growth of the desired organism. It is one of the features which facilitate cloning in a vector.

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