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When DNA is being extracted from a stain on an item of material, how large an area is needed to get good results?

April 26, 2017area dna good large material needed results stain

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When DNA is being extracted from a stain on an item of material, how large an area is needed to get good results?

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Orchid Cellmark prefers to work with items that are at least 3mm x 3mm but we may be able to produce a DNA profile from smaller areas, depending on type and concentration of the stain (semen, blood, saliva, etc.). Typically a semen or blood stain yields the most DNA.