| Molecular phylogeny of the kingdoms Animalia, Plantae, and Fungi | M Gouy, WH Li | 109 |
| Restriction-map variation at the zeste-tko region in natural populations of Drosophila melanogaster | M Aguade, N Miyashita, CH Langley | 123 |
| Patterns of ribosomal RNA evolution in salamanders | A Larson, AC Wilson | 131 |
| Structural and functional differentiation of two clinally distributed glucosephosphate isomerase allelic isozymes from the teleost Fundulus heteroclitus | Be Van, DA Powers | 155 |
| The allelic isozymes of hexose-6-phosphate dehydrogenase isolated from Fundulus heteroclitus: physical characteristics and kinetic properties | IJ Ropson, DA Powers | 171 |
| Molecular evolution of human visual pigment genes | S Yokoyama, R Yokoyama | 186 |
| Tandem-repetitive noncoding DNA: forms and forces | W Stephan | 198 |