title: Welsh I am.
abstract: With developments in genetics, researchers are increasingly able to address historical issues surrounding human migration and provenance by studying present populations. Nigel Williams reports on one of the latest studies looking at a crucial period of British history.
authors.forename: Nigel
authors.initials: N
authors.lastname: Williams
mesh_terms: D041322:Chromosomes, Human, Y / Q000235:genetics; D003469:Culture; D004272:DNA, Mitochondrial / Q000235:genetics; D004641:Emigration and Immigration / Q000266:history*; D005006:Ethnicity / Q000235:genetics / Q000266:history*; D005819:Genetic Markers; D006239:Haplotypes / Q000235:genetics; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D008297:Male; D014852:Wales
chemical_list: D004272:DNA, Mitochondrial; D005819:Genetic Markers