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Question
What is the function of DNA ligase in recombinant technology?
Options
Cut DNA into many fragments
Carry DNA into a new cell
Link together newly joined fragments of DNA
Separate fragments of DNA by their length and electrical charges
MCQ
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Solution
Link together newly joined fragments of DNA
Explanation:
The function of DNA ligase in recombinant technology is to join or link newly joined DNA fragments together. After restriction enzymes cut DNA, the fragments need to be sealed or annealed to form continuous DNA molecules. DNA ligase catalyses this bonding, enabling the formation of recombinant DNA by sealing breaks between fragments.
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