TY - JOUR
AU1 - Dobzhansky, Theodosius
AB - 100 NOTES AND COMMENTS GENETIC HOMEOSTASIS 1 THEoDOSIUS DOBZHANSKY Dl'/Jartment of Zoology, Columbia University, New York City J. B. S. Haldane recently wrote 2 that "The the individual genotypes engender highly adap­ current instar of the evolutionary theory" may tive norms of reaction to the environments in be drawing to its close; although "we are which the species normally lives. Homozygotes certainly not ready for a new moult, but signs are usually poorly adapted. The works of of new organs are perhaps visible." The short Mather and others on Drosophila, and of Lerner book by 1. M. Lerner explores some of the and his collaborators on poultry, have disclosed "new organs." It is, hence, an important and certain peculiar situations which occur when significant work, which may presage the "new artificial selection forces shifts away from his­ moult"; it may even act as a moulting hormone. torically established phenotypic and genotypic Mendelian populations have been customarily equilibria in populations. Such shifts imposed regarded as aggregations of genotypically fairly by artificial selection are often opposed and uniform individuals homozygous for most gene counteracted by natural selection. In other loci, with a scattering of genetically aberrant words, the genotype of a 
TI - GENETIC HOMEOSTASIS
JF - Evolution
DO - 10.1111/j.1558-5646.1955.tb01520.x
DA - 1955-03-01
UR - https://www.deepdyve.com/lp/oxford-university-press/genetic-homeostasis-Mmg89VPcoP
SP - 100
EP - 101
VL - 9
IS - 1
DP - DeepDyve
ER -