441. Spontaneous Bacterial Mutations to Resistance to Antibacterial Agents Publication: Cold Spring Harbor Laboratory. Press, 1946 Archival Collection: The Salvador E. Luria Papers (Profiles in Science)
442. The Cytological Identification of the Chromosomes Associated with the 'R-golden' and 'B-liguleless' Linkage Groups in Zea Mays Publication: Wiley-Liss Inc., 1929 Subject(s): ChromosomesZea mays Archival Collection: The Barbara McClintock Papers (Profiles in Science)
443. The Cytological Identification of the Chromosome Associated with the R-G Linkage Group in Zea Mays Publication: Genetics Society of America, March 1931 Subject(s): Genetic LinkageZea maysChromosomesCytological TechniquesMeiosis Archival Collection: The Barbara McClintock Papers (Profiles in Science)
444. The Production of Maize Plants Mosaic for Homozygous Deficiencies: Simulation of the BM1 Phenotype through Loss of BM1 Locus Publication: Genetics Society of America, 1937 Subject(s): Zea maysChromosomesGenes, Plant Archival Collection: The Barbara McClintock Papers (Profiles in Science)
445. A Method for Detecting Potential Mutations of a Specific Chromosomal Region Publication: Genetics Society of America, 1938 Subject(s): ChromosomesMutationGenes, Plant Archival Collection: The Barbara McClintock Papers (Profiles in Science)
446. Memorandum to Marcus Rhoades (about the Ds Locus) Publication: Produced: January 1949 Subject(s): ChromosomesChromosome BreakageMutation Archival Collection: The Barbara McClintock Papers (Profiles in Science)
447. The Association of Mutants with Homozygous Deficiencies in Zea Mays Publication: Genetics Society of America, September 1940 Subject(s): Ring ChromosomesZea maysMutationPhenotypeGenetic MarkersMitosis Archival Collection: The Barbara McClintock Papers (Profiles in Science)
448. Memorandum to Marcus Rhoades (about the Ds Locus) [pages 1-25] Publication: Produced: January 1949 Subject(s): MutationChromosome BreakageGene ExpressionGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
449. Memorandum to Marcus Rhoades (about the Ds Locus) [pages 26-54] Publication: Produced: January 1949 Subject(s): MutationRing ChromosomesGene ExpressionGenetics Archival Collection: The Barbara McClintock Papers (Profiles in Science)
450. Memorandum to Marcus Rhoades (about the Ds Locus) [Appendix] Publication: Produced: January 1949 Subject(s): GeneticsZea maysMutation Archival Collection: The Barbara McClintock Papers (Profiles in Science)