Sex identification in fresh blood and dried bloodstains by a nonisotopic deoxyribonucleic acid (DNA) analyzing technique |
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| Authors: | R Kobayashi H Nakauchi Y Nakahori Y Nakagome S Matsuzawa |
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| Institution: | Department of Forensic Medicine, Juntendo University School of Medicine, Tokyo, Japan. |
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| Abstract: | Deoxyribonucleic acid (DNA) specimens were prepared from blood or bloodstain extracts, and the content of a Y-chromosome specific DNA fragment was investigated by the Southern hybridization method using a nonisotopic staining technique. Thus obtained patterns of male DNA showed a clear band, whereas broad stains with some faint bands appeared on the patterns of DNA from both sexes. This method is expected to be a new powerful mean of forensic medical examination. |
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