The Mutator Transposable Element Family of Maize.- Protein Phosphorylation and the Regulation of Cellular Processes by the Homologous Two-Component Systems of Bacteria.- The Peculiar Nature of Codon Usage in Primates.- The Role of Nodulation Genes in Bacterium-Plant Communication.- Regulation of Gene Expression by Epidermal Growth Factor.- Machinery for Protein Import into Chloroplasts and Mitochondria.- High-Level Expression of Foreign Genes in Mammalian Cells.- Aromatic Hydrocarbon Degradation: A Molecular Approach.- Employment of Fibroblasts for Gene Transfer Applications for Grafting into the Central Nervous System.- The Molecular Biology of Amino Acid Biosynthesis in Plants.- Genetic Manipulation of Bacillus Thuringiensis Insectidal Crystal Protein Genes in Bacteria.- Progress Towards Gene Targeting in Plants.- Molecular Biology of Mating-Type Determination in Schizophyllum Commune.- Functions of Intracellular Protein Degradation in Yeast.- Transgenic Fish for Aquaculture.