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MHT CET Medical202623 April 2026Evening ShiftBiologyMolecular Basis of InheritanceActual

In DNA, 20-100 base pairs which vary in every human being form ___________.

Options

  1. AShort nucleotide sequences
  2. BVariable number of Tandem repeats
  3. CLarge nucleotide sequence
  4. DVariable length of ss base pairs

Correct answer

B. Variable number of Tandem repeats

Step-by-step solution

In DNA, a small sequence of 20-100 base pairs is arranged tandemly in many copy numbers. The copy number varies from chromosome to chromosome in an individual, showing a very high degree of polymorphism. These repeated sequences are known as Variable Number of Tandem Repeats (VNTRs) or minisatellites, which form the basis of DNA fingerprinting. Answer: Variable number of Tandem repeats

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