DNA Extraction is a laboratory process used to isolate and purify DNA (Deoxyribonucleic Acid) from biological samples. The extracted DNA serves as the essential starting material for various molecular diagnostic and genetic testing procedures.
🔬 What is DNA Extraction?
DNA extraction involves breaking open cells, removing proteins and other cellular components, and purifying the DNA for further analysis. High-quality DNA is important for obtaining reliable molecular test results.
🧬 Applications
DNA extracted from patient samples may be used for:
Genetic and hereditary disorder testing
Mutation and variant analysis
PCR and Real-Time PCR
MLPA and other molecular techniques
Prenatal and reproductive genetic testing
Infectious disease molecular testing
Oncology and cancer genetics
DNA sequencing and NGS
🧪 Sample Types
Depending on the intended test, DNA may be extracted from:
Whole blood
Buccal/cheek cells
Tissue samples
Bone marrow
Other validated biological specimens
⭐ Why Quality Matters
The purity, quantity, and integrity of extracted DNA can directly influence downstream molecular testing. Proper sample handling and validated extraction methods help support accurate and reproducible results.
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