Activity of a transfer RNA modifying enzyme during the development of Drosophila and its relationship to the su(s) locus.

Amino Acyl-tRNA Synthetases/isolation & purification Animals Asparagine Aspartic Acid Carbon Isotopes Chromatography Chromatography, DEAE-Cellulose Chromatography, Gel Chromatography, Thin Layer Drosophila melanogaster/enzymology,growth & development Genes Histidine Metamorphosis, Biological Models, Biological Mutation Oligonucleotides/analysis RNA, Transfer/analysis,metabolism Ribonucleotides/analysis Spectrophotometry, Ultraviolet Transcription, Genetic Tritium Tyrosine

Carbon Isotopes Oligonucleotides Ribonucleotides Tritium Aspartic Acid Tyrosine Histidine Asparagine RNA, Transfer Amino Acyl-tRNA Synthetases