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How is DNA done?

Published in DNA Testing 2 mins read

DNA testing, such as paternity or maternity testing, is done by collecting cells for analysis. These cells are obtained from the inside of the cheek, commonly known as buccal cells.

DNA Sample Collection Process

The process of obtaining a DNA sample is simple and non-invasive. It primarily involves the following steps:

  • Buccal Swab Collection: A buccal (cheek) swab is used to collect cells from the inside of a person's cheek. This is a quick and painless procedure.
  • Sample Storage: Once collected, the buccal swab containing the cells is carefully stored for further analysis.
  • DNA Extraction: The DNA is extracted from the collected cells in a laboratory setting.
  • DNA Analysis: The extracted DNA is then analyzed using specialized laboratory techniques to determine the genetic profile.

Key Aspects of DNA Testing

DNA testing is a versatile process applicable in numerous scenarios:

  • Paternity/Maternity Testing: To establish biological parent-child relationships.
  • Forensic Science: In criminal investigations and identification of individuals.
  • Medical Diagnosis: To detect genetic diseases and predispositions.
  • Ancestry Tracing: To discover a person’s ethnic background and heritage.

Why Buccal Swabs Are Used

Buccal swabs are favored for DNA collection due to their simplicity and non-invasiveness. It's a pain-free process suitable for all ages.


Aspect Details
Method Using a buccal (cheek) swab
Sample Source Cheek cells found on the inside of a person's cheek
Purpose Paternity, maternity, forensic, medical, ancestry testing
Procedure Quick, non-invasive, and generally painless


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