Originally posted by Victor
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From the section you mentioned in the article you linked to above is the following;
The description of this procedure so far is quite ideal. It works pretty much as described for fresh samples. Even with fresh samples however, some of the non-sperm DNA will be trapped in the sperm pellet. This can be a major problem if the amount of sperm is very low or if the samples are aged and degraded. Often male cells, most likely immature sperm or white cells may end up in the supernatant, variously called the “female” fraction or “non-sperm” fraction.
Derrick
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