title: Reply to Mendez et al: the 'extremely ancient' chromosome that still isn't.
authors.affiliation: Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.
authors.forename: Eran
authors.initials: E
authors.lastname: Elhaik
authors.affiliation: Department of Pediatrics, Children's Hospital Los Angeles and Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
authors.forename: Tatiana V
authors.initials: TV
authors.lastname: Tatarinova
authors.affiliation: The Academy of DNA Genealogy, Newton, MA, USA.
authors.forename: Anatole A
authors.initials: AA
authors.lastname: Klyosov
authors.affiliation: Department of Biology & Biochemistry, University of Houston, Houston, TX, USA.
authors.forename: Dan
authors.initials: D
authors.lastname: Graur
mesh_terms: D001741:Black or African American / Q000235:genetics*; D041322:Chromosomes, Human, Y / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics*; D019143:Evolution, Molecular; D005260:Female; D006801:Humans; D008297:Male
chemical_list: D004272:DNA, Mitochondrial