Preferential ribosomal RNA synthesis in the lysate of Escherichia coli Akira Muto OriginalPaper Pages: 1 - 10
X-ray-and TEM-induced mitotic recombination in Drosophila melanogaster: Unequal and sister-strand recombination Hans Joachim Becker OriginalPaper Pages: 11 - 24
Forward mutations induced by nitrosoguanidine during the synchronized cell cycle of Chlamydomonas reinhardi O. SchimmerR. Loppes OriginalPaper Pages: 25 - 31
Suppression of methionine mutants in Coprinus Lorna A. CasseltonH. Shahriari OriginalPaper Pages: 33 - 39
The role of methionine transport-defective mutations in resistance to methionine sulphoximine in Salmonella typhimurium P. R. BetteridgeP. D. Ayling OriginalPaper Pages: 41 - 52
Genetic properties of some amber-ochre supersuppressors in Saccharomyces cerevisiae Wayne L. Gerlach OriginalPaper Pages: 53 - 63
Transience of the donor state in an Escherichia coli K12 strain carrying a repressed R factor Paul Broda OriginalPaper Pages: 65 - 69
Further structural and functional analogies between the repressor regions of phages P22 and λ Michael GoughShin-Ichi Tokuno OriginalPaper Pages: 71 - 79
Distribution of mutant sites in the ftr cistron depends upon the medium used for selection David MooreMagdalene S. Devadatham Short Communication Pages: 81 - 84