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NEET AIPMT SOLVED PAPER 2001

  • question_answer
                                      Which of the following cut the DNA at specific places?                                                                   

    A)                 Restriction endonuclease EcoRI

    B)                 Ligase

    C)                 Exonuclease                                                      

    D)                 Alkaline phosphatase

    Correct Answer: A

    Solution :

                    About 100 types of restriction enzymes are available. Each restriction enzymes cleaves a molecule only at a particular nucleotide sequence. Some important restriction endonucleases are Bam H (Bacillus amyloliqmfaaens H). EcoRI (Escherichia coli) HPal (Haemophilus parainftuenzae) etc.


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