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A Y-STR is a short tandem repeat (STR) on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing.Y-STRs are taken specifically from the male Y chromosome. These Y-STRs provide a weaker analysis than autosomal STRs because the Y chromosome is only found in males, which are only passed down by the father, making the Y chromosome in any paternal line practically identical. This causes a significantly smaller amount of distinction between Y-STR samples. Autosomal STRs provide a much stronger analytical power because of the random matching that occurs between pairs of chromosomes during the zygote making process.

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  • Y-STR (en)
  • Y-STR (zh)
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  • A Y-STR is a short tandem repeat (STR) on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing.Y-STRs are taken specifically from the male Y chromosome. These Y-STRs provide a weaker analysis than autosomal STRs because the Y chromosome is only found in males, which are only passed down by the father, making the Y chromosome in any paternal line practically identical. This causes a significantly smaller amount of distinction between Y-STR samples. Autosomal STRs provide a much stronger analytical power because of the random matching that occurs between pairs of chromosomes during the zygote making process. (en)
  • Y-STR是指Y染色体上的短串联重复序列(STR)位點。 Y-STR通常可以用於法医學、亲子鉴定和。 Y染色体仅在雄性中发现,且仅通過父亲遺傳,因此任何父系成員中的Y染色体实际上都幾乎相同。这导致父系成員Y-STR样本之间的区别很少。 如果两个人有4个Y-STR完全匹配,他们拥有共同父系祖先的概率近95%,若有5到9个Y-STR完全匹配,概率则将近100%。 (zh)
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  • A Y-STR is a short tandem repeat (STR) on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing.Y-STRs are taken specifically from the male Y chromosome. These Y-STRs provide a weaker analysis than autosomal STRs because the Y chromosome is only found in males, which are only passed down by the father, making the Y chromosome in any paternal line practically identical. This causes a significantly smaller amount of distinction between Y-STR samples. Autosomal STRs provide a much stronger analytical power because of the random matching that occurs between pairs of chromosomes during the zygote making process. (en)
  • Y-STR是指Y染色体上的短串联重复序列(STR)位點。 Y-STR通常可以用於法医學、亲子鉴定和。 Y染色体仅在雄性中发现,且仅通過父亲遺傳,因此任何父系成員中的Y染色体实际上都幾乎相同。这导致父系成員Y-STR样本之间的区别很少。 如果两个人有4个Y-STR完全匹配,他们拥有共同父系祖先的概率近95%,若有5到9个Y-STR完全匹配,概率则将近100%。 (zh)
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