DNA Fingerprinting: What Affects The Test

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What Affects the Test

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Factors that can interfere with your test or the accuracy of the results include:

Sample size. The possibility of having inaccurate test results increases if a very small sample of DNA is available for testing. The chance that the DNA will be mixed up with some other DNA is also higher with a smaller sample.
Having had a blood transfusion within the past 3 months.
Decay of the tissue sample.

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Last updated:	April 26, 2007
Author:	Maria G. Essig, MS, ELS
Reviewed By:	Joy Melnikow, MD, MPH - Family Medicine, Renee H. Martin, PhD - Medical Genetics
Editors:	Susan Van Houten, RN, BSN, MBA, Tracy Landauer

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