双系制（そうけいせい）とは、父系制・母系制のいずれでもなく、非単系の出自の辿り方をいう。
| Property | Value |
|---|---|
| dbo:abstract |
|
| dbo:wikiPageID |
|
| dbo:wikiPageLength |
|
| dbo:wikiPageRevisionID |
|
| dbo:wikiPageWikiLink | |
| prop-ja:date |
|
| prop-ja:section |
|
| prop-ja:wikiPageUsesTemplate | |
| dct:subject | |
| rdfs:comment |
|
| rdfs:label |
|
| owl:sameAs | |
| prov:wasDerivedFrom | |
| foaf:isPrimaryTopicOf | |
| is dbo:wikiPageRedirects of | |
| is dbo:wikiPageWikiLink of | |
| is owl:sameAs of | |
| is foaf:primaryTopic of |
