Alternative bases in the RNA world: The prebiotic synthesis of urazole and its ribosides V.M. KolbJ.P. DworkinS.L. Miller OriginalPaper Pages: 549 - 557
In vitro selection of optimal DNA substrates for ligation by a water-soluble carbodiimide Kazuo HaradaLeslie E. Orgel OriginalPaper Pages: 558 - 560
The use of gel electrophoresis to study the reactions of activated amino acids with oligonucleotides Gerhard ZiebollLeslie E. Orgel OriginalPaper Pages: 561 - 565
Evolutionary relationships of bacterial and archaeal glutamine synthetase genes J.R. BrownY. MasuchiW.F. Doolittlel OriginalPaper Pages: 566 - 576
The atpB and rbcL promoters in plastid DNAs of a wide dicot range Jean-François ManenVincent SavolainenPatrice Simone OriginalPaper Pages: 577 - 582
Highly repetitive structure and its organization of the silk fibroin gene Kazuei MitaSachiko IchimuraTharappel C. James OriginalPaper Pages: 583 - 592
The structure of the small mitochondrial DNA of Kluyveromyces thermotolerans is likely to reflect the ancestral gene order in fungi G.D. Clark-WalkerG.F. Weiller OriginalPaper Pages: 593 - 601
Relationship among coelacanths, lungfishes, and tetrapods: A phylogenetic analysis based on mitochondrial cytochrome oxidase I gene sequences Shin-ichi YokoboriMasami HasegawaKimitsuna Watanabe OriginalPaper Pages: 602 - 609
Evidence that stilbene synthases have developed from chalcone synthases several times in the course of evolution S. TropfT. LanzG. Schröder OriginalPaper Pages: 610 - 618
Variable evolutionary rates in the molecular evolution of mammalian growth hormones M. Wallis OriginalPaper Pages: 619 - 627
Interdomain linkage in the polymeric hemoglobin molecule of Artemia Clive N.A. TrotmanAnthony M. ManningWarren P. Tate OriginalPaper Pages: 628 - 636
Drive-selection equilibrium: Homopolymer evolution in the Drosophila gene mastermind Stuart J. NewfeldHidenori TachidaBarry Yedvobnick Letter to the Editor Pages: 637 - 641
Estimation of the number of amino acid substitutions per site when the substitution rate varies among sites Tatsuya OtaMasatoshi Nei Letter to the Editor Pages: 642 - 643
