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ICAR JRF Biochemistry 29 Jun 2024Shift 1
MCQ (Single Correct) +4 −1
Which technique is used to detect specific DNA molecule ?
  • Southern Blotting: Developed by British biologist Edwin Southern (1975) to identify and detect specific target DNA molecules.
  • Process: DNA is digested with restriction endonucleases, resolved by agarose gel electrophoresis, capillary-transferred to a nitrocellulose or nylon membrane, and hybridized with a labeled complementary DNA/RNA probe.
  • Distinctions: Northern blotting detects specific RNA; Western blotting detects specific proteins; Eastern blotting detects post-translational modifications.

Correct option: (1) Southem blotting

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