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Principles of Forensic DNA for Officers of the Court

Base Pairing

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National Institute of Justice (NIJ) (see reuse policy).

All of the DNA in a cell is known as the genome. The human genome has approximately 3 billion base pairs. Because there can be trillions of base-pair combinations, scientists can reliably report on DNA analyses. It is the specific order (sequence) of these base pair combinations that determines each person's genetic individuality.

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