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Which enzyme cleaves the DNA?

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in Drug Biotechnology by (138k points)
Which enzyme cleaves the DNA?

(a) Endonucleases

(b) Polymerases

(c) Ligases

(d) Lyases

The question was asked during an interview.

My question comes from Genetic Recombination topic in portion Genetic Recombination of Drug Biotechnology

1 Answer

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Best answer
The correct answer is (a) Endonucleases

The best explanation: After a competent cell binds to a double stranded moderately large DNA, the donor fragments starts competing with each other. The DNA is then cleaved by endonucleases to form small double stranded fragments of about 5 to 15 kilo base.

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