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Which of the following enzyme is required for end to end joining of DNA?

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Which of the following enzyme is required for end to end joining of DNA?

(a) DNA ligase

(b) Restriction endonuclease

(c) RNA polymerase

(d) DNA polymerase

The question was asked in an online interview.

Question is taken from DNA Cloning: The Basics-1 topic in chapter DNA-Based Information Technologies of Biochemistry

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Best answer
The correct option is (a) DNA ligase

The best explanation: DNA ligase ligates both blunt and sticky ends of DNA.

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