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Question

The DNA-joining enzyme required in recombinant DNA technology is

A
Transcriptase
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B
DNA ligase
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C
DNA helicase
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D
DNA polymerase
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Solution

The correct option is B DNA ligase
  • An enzyme that joins small pieces of DNA is called DNA ligase.
  • DNA ligase is a specific type of enzyme that facilitates the joining of DNA strands by forming phosphodiester bonds between the two strands.
  • It plays a role in repairing single-strand breaks.
Thus, the correct answer is option B.

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