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Biology · Principles and Processes in Biotechnology

हिन्दी

During the construction of the first recombinant DNA, the cut gene encoding antibiotic resistance was linked with the plasmid vector. Which enzyme catalyzed this covalent joining of cut DNA molecules?

  1. DNA Polymerase
  2. Restriction endonuclease
  3. DNA ligase
  4. Exonuclease

Correct answer · Option 3

DNA ligase

Explanation

DNA ligase enzyme acts on cut DNA molecules and joins their ends, creating a covalent linkage between the vector DNA and the foreign gene.
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