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प्रश्न
The role of restriction endonucleases is ______.
पर्याय
to cut DNA fragment at specific sites
to join DNA fragments
to introduce DNA into plasmid
none of the above
MCQ
रिकाम्या जागा भरा
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उत्तर
The role of restriction endonucleases is to cut DNA fragment at specific sites.
Explanation:
Restriction endonucleases recognise specific DNA sequences and cut at those sites. DNA ligase joins fragments; restriction enzymes do not introduce DNA into plasmids.
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