Forensic serology saliva sperm
The following module discusses the properties of DNA, Semen, and saliva so that we To begin, please watch the following overview video of the forensic DNA.
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Serology - Blood and other Bodily Fluids
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Serology - Blood and other Bodily Fluids. When evaluating forensic tests on suspected blood, semen, or saliva evidence, it is important for defenders to.
Description:Also, in humans, there are four variants of alpha-amylase, two of which are found in saliva, and the other two are secreted by the pancreas. Under specialized lights, semen will fluoresce due to the presence of molecules such as Flavin and Choline-conjugated proteins. If creatinine is present, after the addition of various chemicals, a color change from yellow to orange and back to yellow will be observed. For information concerning the degradation rate of spermatozoa, a good start is the study by Drs. When saliva is present, the alpha-amylase breaks down the starches, creating a clear circle around the sample well. PSA is produced in high amounts by male prostate gland. A lab report may not reveal what type of test was done.