1. Forthcoming papers

   Announcement Pages: iii - iii

2. Random walking

   • Thomas H. Jukes

   OriginalPaper Pages: 469 - 470

3. Statistical evidence for remnants of the primordial code in the acceptor stem of prokaryotic transfer RNA

   • W. Möller
   • G.M.C. Janssen

   OriginalPaper Pages: 471 - 477

4. The boll weevil vitellogenin gene: Nucleotide sequence, structure, and evolutionary relationship to nematode and vertebrate vitellogenin genes

   • Patrick M. Trewitt
   • Larry J. Heilmann
   • A. Krishna Kumaran

   OriginalPaper Pages: 478 - 492

5. The complete mitochondrial DNA sequence of the harbor seal, Phoca vitulina

   • Úlfur Árnason
   • Ellinor Johnsson

   OriginalPaper Pages: 493 - 505

6. An evolutionary model for the duplication and divergence of esterase genes in Drosophila

   • James P. Brady
   • Rollin C. Richmond

   OriginalPaper Pages: 506 - 521

7. Progressive sequence alignment and molecular evolution of the Zn-containing alcohol dehydrogenase family

   • Hong-Wei Sun
   • Bryce V. Plapp

   OriginalPaper Pages: 522 - 535

8. Evolutionary origin of a Kunitz-type trypsin inhibitor domain inserted in the amyloid β precursor protein of Alzheimer's disease

   • Kazuho Ikeo
   • Kei Takahashi
   • Takashi Gojobori

   OriginalPaper Pages: 536 - 543

9. Anomalous phylogeny involving the enzyme glucose-6-phosphate isomerase

   • Michael W. Smith
   • Russell F. Doolittle

   Letter to the Editor Pages: 544 - 545