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Grade 12th passZoology

which among the following is a function of restriction enzyme in nature
  1. plasmids
  2. destroy foreign DNA
  3. destroy phage DNA
  4. splice up DNA of the cells

Profile image of somya
11 Years agoGrade 12th pass
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4 Answers

Profile image of Gaurav
11 Years ago
Hello Student
Correct answer is 3. Destroy phase DNA
Restriction enzyme cuts DNA at specific restriction sites. And Restriction enzyme protects host cell from phase by destroying its DNA by methylation of nucleotides.
Profile image of Gaurav
11 Years ago
Hello Student
Correct answer is 3. Destroy phase DNA
Restriction enzyme cuts DNA at specific restriction sites. And Restriction enzyme protects host cell from phase by destroying its DNA by methylation of nucleotides.
Profile image of Gaurav
11 Years ago
Hello Student
Correct answer is 3. Destroy phase DNA
Restriction enzyme cuts DNA at specific restriction sites. And Restriction enzyme protects host cell from phase by destroying its DNA by methylation of nucleotides.
Profile image of Raheema Javed
11 Years ago
The correct answer is (3) destroy phage DNA

These enzymes are found in bacteria and archaea and provide a defense mechanism against invading viruses. Inside a prokaryote, the restriction enzymes selectively cut up foreign DNA in a process called restriction; while host DNA is protected by a modification enzyme (a methylase) that modifies the prokaryotic DNA and blocks cleavage. Together, these two processes form the restriction modification system.