Jisho

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もっとちかきょうつうせん 共通祖先
Expressions (phrases, clauses, etc.), Noun
1. most recent common ancestor
Wikipedia definition
2. Most recent common ancestorIn genetics, the most recent common ancestor (MRCA) of any set of organisms is the most recent individual from which all organisms in the group are directly descended. The term is often applied to human genealogy. The MRCA of a set of individuals can sometimes be determined by referring to an established pedigree. However, in general, it is impossible to identify the specific MRCA of a large set of individuals, but an estimate of the time at which the MRCA lived can often be given.
Read “Most recent common ancestor” on English Wikipedia
Read “最も近い共通祖先” on Japanese Wikipedia
Read “Most recent common ancestor” on DBpedia

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