| The sequence of the gorilla fetal globin genes: evidence for multiple gene conversions in human evolution | AF Scott, P Heath, S Trusko, SH Boyer, W Prass | 371 |
| Comparison of the beta-like globin gene families of rabbits and humans indicates that the gene cluster 5'-epsilon-gamma-delta-beta-3' predates the mammalian radiation | RC Hardison | 390 |
| Bacterial transposon Tn5: evolutionary inferences | DE Berg, CM Berg, C Sasakawa | 411 |
| An analysis of the dynamics of mammalian mitochondrial DNA sequence evolution | CF Aquadro, N Kaplan, KJ Risko | 423 |
| Book reviews | RC Hardison, FW Allendorf | 435 |