- A Southern blot hybridization using a radioactive DNA probe
- B PCR amplification followed by capillary electrophoresis
- C Northern blot hybridization to detect specific mRNA transcripts
- D Western blot detection using a labeled antibody probe
Correct answer: B. PCR amplification followed by capillary electrophoresis
Explanation: Forensic DNA profiling: PCR amplifies multiple STR (short tandem repeat) loci. Fragment sizes are measured by capillary electrophoresis. Results create a unique DNA profile.
Concept context
Recombinant DNA, GMOs, PCR, CRISPR, and biotechnology applications. Growing importance in NEET.
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