Q34 / 200 · MHT CET - Medical 2026 (21 April Shift 1) · Biology

Given below are two statements:
Statement (I): DNA fingerprinting technique involves identifying similarities in VNTRs.
Statement (II): The length of the regions having VNTRs is different in each individual.
In light of the above statements, choose the most appropriate answer from the options given below.

  • A
    Both Statement (I) and Statement (II) are correct.
  • B
    Both Statement (I) and Statement (II) are incorrect.
  • C
    Statement (I) is correct but Statement (II) is incorrect.
  • Correct answer
    D
    Statement (I) is incorrect but Statement (II) is correct.

Solution

Statement (I) is incorrect because DNA fingerprinting involves identifying differences, not similarities, in some specific regions in the DNA sequence called repetitive DNA.

Statement (II) is correct because the Variable Number of Tandem Repeats (VNTRs) show a very high degree of polymorphism. The number of repeats varies from person to person, which means the length of the regions having VNTRs is different in each individual (varying in size from $0.1$ to $20$ kb), giving a characteristic pattern for an individual's DNA.

Therefore, Statement (I) is incorrect but Statement (II) is correct.

Answer: Statement (I) is incorrect but Statement (II) is correct.

Hence, the correct answer is option: 'D'.

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