The Historical Factor: The Biosynthetic Relationships Between Amino Acids and Their Physicochemical Properties in the Origin of the Genetic Code Massimo Di GiulioMario Medugno Pages: 615 - 621
Preference for Internucleotide Linkages as a Function of the Number of Constituents in a Mixture Anastassia Kanavarioti Pages: 622 - 632
On the Pattern of Polymorphisms at Major Histocompatibility Complex Loci Tomoko Ohta Pages: 633 - 638
Evolution of a Mammalian Promoter Through Changes in Patterns of Transcription Factor Binding Nandita SinghFranklin G. Berger Pages: 639 - 648
Characterization of a Novel Class of Interspersed LTR Elements in Primate Genomes: Structure, Genomic Distribution, and Evolution Daiqing LiaoThomas PavelitzAlan M. Weiner Pages: 649 - 660
Accumulation of Transposable Elements in the Heterochromatin and on the Y Chromosome of Drosophila simulans and Drosophila melanogaster Nikolaj JunakovicAlessandro TerrinoniCatherine Loevenbruck Pages: 661 - 668
The Complete Mitochondrial Genome of Rhea americana and Early Avian Divergences Anna HärlidAxel JankeUlfur Arnason Pages: 669 - 679
Intraindividual and Interspecies Variation in the 5S rDNA of Coregonid Fish S. Linn SajdakKent M. ReedRuth B. Phillips Pages: 680 - 688
The Peperomia Mitochondrial coxI Group I Intron: Timing of Horizontal Transfer and Subsequent Evolution of the Intron Keith L. AdamsMartin J. ClementsJack C. Vaughn Pages: 689 - 696
Molecular Genetics of Spectral Tuning in New World Monkey Color Vision Song-Kun ShyueStéphane BoissinotWen-Hsiung Li Pages: 697 - 702
The Prokaryote-to-Eukaryote Transition Reflected in the Evolution of the V/F/A-ATPase Catalytic and Proteolipid Subunits Elena HilarioJohann Peter Gogarten Pages: 703 - 715
Signature Sequences in Diverse Proteins Provide Evidence of a Close Evolutionary Relationship Between the Deinococcus-Thermus Group and Cyanobacteria Radhey S. GuptaVanessa Johari Pages: 716 - 720
Phylogenetic Position of the Hexactinellida Within the Phylum Porifera Based on the Amino Acid Sequence of the Protein Kinase C from Rhabdocalyptus dawsoni Michael KruseSally P. LeysWerner E.G. Müller Pages: 721 - 728
Variable Substitution Rates of the 18 Domain Sequences in Artemia Hemoglobin Charles M. MatthewsCassandra J. VandenbergClive N.A. Trotman Pages: 729 - 733
The Evolution of MHC Diversity by Segmental Duplication and Transposition of Retroelements Jerzy K. KulskiSilvana GaudieriRoger L. Dawkins Pages: 734 - 734