Knowles, B B Fecundity and fertility in female homo- and heterokaryotypes of the tumorous-head strain of Drosophila melanogaster. [electronic resource] - Genetics Oct 1967 - 437-47 p. digital Publication Type: Journal Article ISSN: 0016-6731 Standard No.: 10.1093/genetics/57.2.437 doi Subjects--Topical Terms: AnimalsChromosomesDeathDrosophilaExtrachromosomal InheritanceFemaleFertilityHeterozygoteHomozygoteKaryotypingPolymorphism, Genetic