1. De Novo mutation-like events observed at the 6PGD locus of the Japanese quail, and the principle of polymorphism breeding more polymorphism

   • Susumu Ohno
   • Christina Stenius
   • Gisela Schipmann

   OriginalPaper Pages: 417 - 428

2. Isozyme genotype-environment relationships in natural populations of the harvester ant, Pogonomyrmex barbatus, from Texas

   • F. M. Johnson
   • Henry E. Schaffer
   • E. S. Rockwood

   OriginalPaper Pages: 429 - 450

3. Timing of callase activity and cytoplasmic male sterility in Petunia

   • Rafael Frankel
   • Shamay Izhar
   • Joseph Nitsan

   OriginalPaper Pages: 451 - 455

4. Lactate dehydrogenase isozymes: Qualitative and quantitative changes during primate evolution

   • A. L. Koen
   • M. Goodman

   OriginalPaper Pages: 457 - 474

5. Hexokinase isozyme variability in Drosophila robusta

   • Conrad Knutsen
   • Charles F. Sing
   • George J. Brewer

   OriginalPaper Pages: 475 - 483

6. Correlation of ribulose 1,5-diphosphate carboxylase activity with chlorophyll content and ultrastructure in induced mutants of Hordeum vulgare

   • A. Kleinhofs
   • L. K. Shumway

   OriginalPaper Pages: 485 - 492

7. Electrophoretic heterogeneity of mouse erythrocyte peptidases

   • W. H. P. Lewis
   • Gillian M. Truslove

   OriginalPaper Pages: 493 - 498

8. A genetically determined variant of the a-subunit of lactic dehydrogenase in the deer mouse

   • B. M. Cattanach
   • J. N. Perez

   OriginalPaper Pages: 499 - 506

9. Linkage analyses using biochemical variants in mice. I. Linkage of the hemoglobin beta-chain and glucosephosphate isomerase loci

   • John J. Hutton

   OriginalPaper Pages: 507 - 515

10. Linkage analyses using biochemical variants in mice. II. Levulinate dehydratase and autosomal glucose 6-phosphate dehydrogenase

    • John J. Hutton
    • D. L. Coleman

    OriginalPaper Pages: 517 - 523