51. 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)
52. 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)
53. 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)
54. 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)
55. 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)
56. Letter from Joshua Lederberg to Barbara McClintock Publication: Produced: 4 October 1948 Subject(s): Recombination, GeneticMutationGenetics, Microbial Archival Collection: The Barbara McClintock Papers (Profiles in Science)
57. Letter from Barbara McClintock to Joshua Lederberg Publication: Produced: 8 November 1948 Subject(s): Recombination, GeneticRing ChromosomesCrossing Over, Genetic Archival Collection: The Barbara McClintock Papers (Profiles in Science)
58. The Ds Locus. Part III. Transposition of the Ds Locus Publication: Produced: [April 1949 - January 1950] Subject(s): Zea maysCrossing Over, GeneticCytogeneticsChromosome BreakageMutation Archival Collection: The Barbara McClintock Papers (Profiles in Science)
59. The Stability of Broken Ends of Chromosomes in Zea Mays Publication: Genetics Society of America, March 1941 Subject(s): Chromosome BreakageZea maysCrossing Over, GeneticMeiosisMitosisChromatids Archival Collection: The Barbara McClintock Papers (Profiles in Science)
60. The Ds Locus. Part III. Transposition of the Ds Locus (Title Page and Table of Contents) Publication: Produced: [April 1949 - January 1950] Subject(s): Zea maysCrossing Over, GeneticCytogeneticsChromosome BreakageMutation Archival Collection: The Barbara McClintock Papers (Profiles in Science)