The Office Christmas specials The Office Christmas specials "The Office" Christmas Specials are the two-part final episode of the British mockumentary comedy television series "The Office". The specials were commissioned after the series' creators, Ricky Gervais and Stephen Merchant, announced that they would not write a full third series of the show. The first 45-minute part was broadcast on BBC One on 26 December 2003, and the second 50-minute part was shown the following evening. The episodes are presented in the style of "revisited" documentaries common on British television, in which popular "docusoaps" (e.g. "Airport"), are brought back for one-off specials several years after
Most recent common ancestor all of the modern population. Due to pedigree collapse, modern individuals may still exhibit clustering, due to vastly different contributions from each of ancestral population . Most recent common ancestor In biology and genealogy, the most recent common ancestor (MRCA, also last common ancestor (LCA), or concestor) of any set of organisms is the most recent individual from which all the organisms are directly descended. The term is also used in reference to the ancestry of groups of genes (haplotypes) rather than organisms. The MRCA of a set of individuals can sometimes be determined by referring to an established pedigree.