| Evolution of isopenicillin N synthase genes may have involved horizontal gene transfer | G Landan, G Cohen, Y Aharonowitz, Y Shuali, D Graur | 399 |
| Origin of rat beta-globin haplotypes containing three and five genes | T Paunesku, M Stevanovic, D Radosavljevic, R Drmanac, R Crkvenjakov | 407 |
| Evolution of beta-globin haplotypes in human populations | LZ Chen, S Easteal, PG Board, RL Kirk | 423 |
| Correcting parsimonious trees for unseen nucleotide substitutions: the effect of dense branching as exemplified by ribonuclease | WM Fitch, JJ Beintema | 438 |
| Hierarchical analysis of population genetic variation in mitochondrial and nuclear genes of Daphnia pulex | TJ Crease, M Lynch, K Spitze | 444 |
| Analysis of the gene encoding the multifunctional alcohol dehydrogenase allozyme ADH-71k of Drosophila melanogaster | KT Eisses, AJ Andriesse, de Douwe, GE Thorig, PJ Weisbeek | 459 |
| The primary structure of langur (Presbytis entellus) pancreatic ribonuclease: adaptive features in digestive enzymes in mammals | JJ Beintema | 470 |
| The similarity index and DNA fingerprinting | M Lynch | 478 |
| Accuracy of estimating genetic distance between species from short sequences of mitochondrial DNA | AP Martin, BD Kessing, SR Palumbi | 485 |
| Notice to Molecular Biology and Evolution readers and authors | | 489 |