DNA Testing

DNA testing encompasses laboratory procedures analysing biological specimens for genetic characteristics enabling individual identification, disease susceptibility assessment, and pathogen characterisation. The testing approach provides objective biological evidence supporting criminal investigations, paternity determinations, and medical diagnostics.

DNA testing methodologies span DNA fingerprinting (STR profiling) generating unique genetic patterns enabling definitive suspect identification, DNA sequencing determining nucleotide sequences at maximum resolution, mitochondrial DNA analysis enabling identification of degraded remains, and genetic mutation screening detecting disease-causing variants. Each methodology addresses specific diagnostic or investigative requirements.

Forensic DNA testing employs STR (short tandem repeat) profiling generating fingerprint-quality genetic data through analysis of repetitive DNA sequences with high variability between individuals. Analysis of 13–20 STR markers enables individual identification through CODIS database matching. Sensitivity specifications achieve detection of picogram DNA quantities enabling analysis of minute crime scene evidence.

Medical DNA testing detects disease-causing mutations informing therapeutic decisions and genetic counselling. Pharmacogenomic testing predicts medication response enabling personalised treatment. Ancestry testing determines population origin through ancestral genetic markers.

Operational procedures involve specimen collection through sterile swabs, DNA extraction and purification, PCR amplification concentrating target sequences, and electrophoretic analysis separating products by size. Automated systems reduce manual labour enabling high-throughput processing.

Laboratory standards follow accreditation requirements (CLIA, ISO 17025) ensuring quality and reliability. Chain-of-custody procedures ensure specimen integrity supporting legal admissibility.

In Pakistan, DNA testing supports law enforcement and medical diagnostics.

Tactical Supply Pakistan supplies DNA testing services for forensic and diagnostic applications.