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1. In genealogical classification, the most common ancestor is the father.
在家族谱系分类中，最常见的祖先是父亲。
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2. The genealogical classification of a family helps us understand its history and relationships.
家族的谱系分类有助于我们了解其历史和关系。
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3. This genealogical classification system is based on DNA analysis.
这种谱系分类系统基于DNA分析。