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Douglas H. Ubelaker Ph.D. 《Journal of forensic sciences》2014,59(6):1466-1472
Radiocarbon analysis of organic materials, with the comparison of values with those of the post‐1950 modern bomb curve, has proven useful in forensic science to help evaluate the antiquity of evidence. Applications are particularly helpful in the study of human remains, especially with those displaying advanced decomposition of soft tissues. Radiocarbon analysis can reveal if the remains relate to the modern, post‐1950 era and if so, also provide information needed to evaluate the death and birth date. Sample selection and interpretation of results must be guided by knowledge of the formation and remodeling of different human tissues, as well as contextual information and the approximate age at death of the individual represented. Dental enamel does not remodel and thus captures dietary radiocarbon values at the time of juvenile formation. Most other human tissues do remodel but at differing rates and therefore collectively offer key information relative to the estimation of the death date. 相似文献
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线粒体DNA测序分析及其法医学应用 总被引:2,自引:0,他引:2
本文建立一种以γ-32PATP直接标记PCR扩增引物为测序引物、纯化的PCR扩增产物为模板、Taq酶直接测序的方法、对100倒无血缘关系的中国汉族人线粒体DNA主要高变区D环区的328个碱基(第16091-16418位)进行了核酸序列分析,检出86种基因型,出现率最高者为7%;检出81个可变碱基位点。两个非血缘关系的中国汉族人出现完全相同序列的概率为0.0068。通过对2个四代家系.5个三代家系和10个两代家系分析扯实线粒体DNA是母系遗传。 相似文献
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荧光原位杂交技术在法庭科学DNA检验中的应用 总被引:2,自引:0,他引:2
目的运用荧光原位杂交技术结合激光显微切割技术,分离法医物证男女混合样本中的男性细胞和女性细胞,并进行DNA分型。方法通过双色荧光原位杂交,Y染色体标记上绿色信号,X染色体标记上红色信号,在荧光显微镜下识别男性细胞和女性细胞,并通过激光显微切割技术分别获得男性细胞和女性细胞进行DNA分型。结果运用荧光原位杂交技术,能够分别标记法医物证男女混合样本中的男性细胞和女性细胞,并通过激光显微切割技术获得各自的DNA分型。结论荧光原位杂交技术结合激光显微切割技术,可应用于法医物证男女混合样本的检验,提高个体识别能力。 相似文献