1. Letter from Francis Crick to Aaron Klug Publication: Produced: 17 January 1977 Subject(s): DNAChromatids Archival Collection: The Francis Crick Papers (Profiles in Science)
2. 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)