12th Class Biology Sample Paper Biology - Sample Paper-7

  • question_answer What is DNA fingerprinting? Mention its application.

    Answer:

    DNA fingerprinting is the technique to determine the relationship between two DNA samples by staying in similarity and dissimilarity of VNTRs (variable number tandem repeats). VNTR/repetitive DNA are distinguished as different peaks from bulk genomic DNA during density gradient centrifugation.

    Its applications are:
    (a) It is used as a tool in forensic tests identify criminals.
    (b) It is used to settle paternity dispute.
    (c) It is used to identify racial group to study biological evolution.


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