obsolete extrachromosomal rDNA circle accumulation involved in replicative cell aging https://github.com/geneontology/go-ontology/issues/20007 true OBSOLETE. Increase in abundance of circular DNA molecules containing ribosomal DNA repeats in dividing cells as they age. These molecules originate in the chromosome but are excised and circularized, often by intramolecular homologous recombination between direct tandem repeats, and then replicated independently of chromosomal replication. biological_process extrachromosomal ribosomal DNA circle accumulation during replicative cell aging This term was obsoleted because it represents an assay, not a true biological process. extrachromosomal rDNA circle accumulation during replicative cell aging extrachromosomal rDNA circle accumulation during replicative cell ageing GO:0001310