Pedigree collapse

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Key components Chromosome DNA RNA Genome Heredity Nucleotide Mutation Genetic variation Allele Amino acid Outline Index
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In genealogy, pedigree collapse describes how reproduction between two individuals who share an ancestor causes the number of distinct ancestors in the family tree of their offspring to be smaller than it could otherwise be. Robert C. Gunderson coined the term; synonyms include implex and the German Ahnenschwund ("loss of ancestors").^[1]