Abstract:

The human Y Chromosome has unique genetic characteristics. The genetic information on Y chromosome of a male must inherit from his father， which is similar to the way we get our family name， so the STR loci on Y chromosome is also called “famaily gene”. Combining the Y-STR analysis technique in the view of “family name gene” with detective methods， would strenthen forenisc medical analysis and narrow the investigation scale， making us take the initiative in investigation.

Key words: Y-STR, family gene, forensic analysis, investigation application

摘要：

人类Y染色体有其独特的遗传特点，男性子代的Y染色体必须来自于父亲，这在“中国姓氏”父系遗传的特点类似，所以Y染色体STR基因座又称为“姓氏基因”。将Y-STR检测技术与“姓氏”相结合，通过侦查等手段的紧密配合，在强化法医学分析和侦查学研判的基础上，可以帮助缩小侦查范围，实现主动侦查、主动破案。

关键词: DNA检测, 姓氏基因, 法医学分析, 侦查学运用