Heritable Variations and the Results of Selection in the Fission Rate of Stylonychia PustulataWaverly Press, 1915 - 53 pagine |
Parole e frasi comuni
abscissae Actual number average difference average fission rate average number averages per ten-day balanced selection broken line cent Cladocera conjugation consecutive ten-day periods continuous line continuous opposite selection Curves of variation daily differences days of balanced difference in favor difference in fission direct selection effect of selection eighty days ex-conjugants Excess in favor Experiment 1-B Experiment 3-A fast and slow fast lines fast selected lines fast set favor of fast fifth ten-day periods fresh slides genotype heritable difference heritable variations infusoria line per day line per ten-day LINES NUMBER lines of Experiment mass culture minus selection number of fissions number of selections numbers of lines periods of balanced periods of Experiment Polygon progeny rate of fission reversed selection Second 10-day Period selec selection of Experiment sets of lines single individual slow set slow-selected Stylonychia pustulata thirty days three ten-day periods three-day periods tion total number vegetative reproduction ZOÖLOGY