Q. Probes, used in DNA fingerprinting are initially

A
Single-stranded RNA
B
Mini satellite
C
19 base long oligonucleotides
D
All of the above
Solution:
  • The probes used for DNA fingerprinting are usually prepared from minisatellite or microsatellite DNA
  • Any piece of DNA sample found at a crime scene can be analysed for the level of polymorphism in the non-coding repetitive sequences.
  • After the DNA profile is traced, it becomes easier to find the criminal by performing the DNA fingerprinting for the suspects.
  • Apart from crime scenes, Fingerprinting applications also prove useful in finding the parents of an unclaimed baby by conducting a paternity test on a DNA sample from the baby.
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