DNA and Blood Condition
Date: July 2007
I would like to know under what conditions must blood
be stored in order to be able to do DNA tests on the sample and
can you do DNA tests on dry blood?
Blood can be stored frozen or dried. Nowadays, instead of using
blood, it is much easier to scrape the inside of the mouth with a
cotton swab which can then be stored dried or frozen. Often, forensic
evidence in the form of dried blood splatter or drops can be
successfully analyzed to identify criminals.
Ron Baker, Ph.D.
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Update: June 2012