What is the function of ligase in restriction enzyme digestion and ligation process?

What is the function of ligase in restriction enzyme digestion and ligation process?
  1. To cut the source DNA
  2. To cut the vector DNA
  3. To prepare recombinant DNA
  4. To purify the DNA

Solution

Ligase is added to the mixture of cut out ‘gene of interest’ from the source DNA and the cut vector with space, which results in the preparation of recombinant DNA)

Asked in: NCERT

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