Genetics of natural populations. XXXIX. A test of the possible influence of two insecticides on the chromosomal polymorphism in Drosophila pseudoobscura.
D000220:Adaptation, Biological; D002875:Chromosomes; D003634:DDT; D004026:Dieldrin; D004330:Drosophila; D004777:Environment; D005787:Gene Frequency; D014644:Genetic Variation; D005828:Genetics, Population; D007564:Japan; D007621:Karyotyping; D009518:New York; D011110:Polymorphism, Genetic
D003634:DDT; D004026:Dieldrin