Agatha Christie: And Then There Were None Agatha Christie: And Then There Were None Agatha Christie: And Then There Were None (also simply known as And Then There Were None) is a 2005 point-and-click adventure game developed by AWE Productions and published by The Adventure Company for Microsoft Windows. It was the first in The Adventure Company's "Agatha Christie" series. The game is a detective murder-mystery; it begins with nine people, including Patrick Narracott, the playable character, who meet and journey to the fictional Shipwreck Island. There, two additional onscreen characters are introduced, and the story then follows the events that unfold. "And Then There Were None"
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.