RT Journal Article SR Electronic T1 GENETICS OF NATURAL POPULATIONS. XVIII. EXPERIMENTS ON CHROMOSOMES OF DROSOPHILA PSEUDOOBSCURA FROM DIFFERENT GEOGRAPHIC REGIONS JF Genetics JO Genetics FD Genetics Society of America SP 588 OP 602 VO 33 IS 6 A1 Dobzhansky, Theodosius YR 1948 UL http://www.genetics.org/content/33/6/588.abstract AB