RT Journal Article SR Electronic T1 Chromosomes and Genes. The Biological Basis of Heredity JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 191 OP 191 DO 10.1136/jmg.7.2.191-a VO 7 IS 2 A1 John L. Hamerton YR 1970 UL http://jmg.bmj.com/content/7/2/191.2.abstract AB