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dc.contributor.authorPechan, Peter Alexander.en_US
dc.date.accessioned2009-07-09T18:54:46Z
dc.date.available2009-07-09T18:54:46Z
dc.date.issued1977-07-09T18:54:46Z
dc.identifier.urihttp://hdl.handle.net/10464/2224
dc.description.abstractInter and intrachromosomal viability interactions have been detected in a few experimental studies. Computer simulations and analytical models have led to postulation of nonadditivity of gene action. This study reports evidence of strong nonadditive interactions between the arms of the metacentric second chromosome of Drosophila melanogaster. Mean viability for 40 homozygous lines of the second chromosomes was 0.720+0.265 • Mean viability for 40 half homozygous second chromosomes was 0.928!O.)10 • Significant heterogeneity among and within lines was found in both groups of chromosomes, as well as a highly significant viability difference between the two groups. Comparison of observed viabilities with the expected values, according to the theories of additive and multi - plicative gene action. was made for both groups. Highly significant departures from the expected values were found for over 90% of the lines in both groups of chromosomes, for both additive and multiplicative models of gene action.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectDrosophila melanogaster.en_US
dc.subjectChromosomes.en_US
dc.titleViability interactions between the left and right arms of the second chromosome of Drosophila melanogasteren_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Biological Sciencesen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Biological Sciencesen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US


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