Sunday, May 23, 2010

Is it possible to determine DNA from sweat? I mean, can you perform a DNA test on a sweaty tissue,for example?


Answers:
Yes. A small amount of protein is excreted in sweat. Check the source website for some good information about DNA collection.
no its not possible, coz the composition of sweat is just salts and water. If ur talking abt sweaty tissue, DNA test can be performad from any body tissue, as these tissues are made of large number of same cells united together and DNA is present in these cells within the nuclii, which can be extracted by chemical process.
Actually, sweat does contain small traces of DNA. The DNA is present in cells that have 'sloughed' off and deposited into the sweat. There is enough DNA in sweat to detect its presence, but there usually too little to identify its source. That is, there is a low chance of identifying from WHOM the sweat came.edit: grammatical error
yes
Yes.
I think is you have about 30% chance to get DNA out of sweat.(If I remember correctly)
yup. anything that comes out of your body has traces of your dna.
Yes.

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