1,101 Results
for term "sites"
- GENETIC ANALYSIS OF THE ACTIVE SITES OF lac REPRESSOR...mutations have been localized by deletion mapping. All i-d mutations map in the region of the i gene, which ccdes for the aminoterminal part of the lac repressor, whereas i s mutations map in the middle of the i gene and at the proximal end of the i-d cluster. AC repressor is a protein with two active sites ~~~
- SITES OF THE 5S RIBOSOMAL GENES IN DROSOPHILA. I. THE MULTIPLE CLUSTERS IN THE VIRILIS GROUP...SITES OF THE 5s RIBOSOMAL GENES IN DROSOPHILA. I. THE MULTIPLE CLUSTERS I N THE VZRZLZS GROUP' D. E. WIMBER AND DORIS R. WIMBER Department of Biology, University of Oregon, Eugene, Oregon 97403 Manuscript received October 20, 1976 Revised copy received January 7, 1977 ABSTRACT Drosophila ~~~
- INTRACISTRONIC MAPPING OF ELECTROPHORETIC SITES IN DROSOPHILA MELANOGASTER: FIDELITY OF INFORMATION TRANSFER BY GENE CONVERSION...INTRACISTRONIC MAPPING OF ELECTROPHORETIC SITES IN DROSOPHILA MELANOGASTER: FIDELITY O F INFORMATION TRANSFER BY GENE CONVERSION1 MARGARET McCARRON, WILLIAM GELBART A N D ARTHUR CHOVNICK Genetics and Cell Biology Section, Biological Sciences Group, The University of Connecticut, Storrs, Connecticut ~~~
- VARIATION OF MUTAGENIC ACTION ON NONSENSE MUTANTS AT DIFFERENT SITES IN THE ISO-1-CYTOCHROME c GENE OF YEAST...of tryptophan replacements in ochre revertants, could be corroborated rom the studies of two groups of suppressors that were shown to act on either the ochre or amber mutants. All five nonsense mutants are located at different sites in the C Y C ~ gene and all are a t sites that can be occupied by amino acids ~~~
- SELECTION FOR AND AGAINST GREGARIOUSNESS IN THE CHOICE OF OVIPOSITION SITES BY DROSOPHILA PSEUDOOBSCURA...SELZCTION FOR AND AGAINST GREGARIOUSNESS IN THE CHOICE OF OVIPOSITION SITES BY DROSOPHILA PSEUDOOBSCURA1 EDUARDO DEL SOLAR2 The Rockefeller University. New York City Received September 7 . 1967 istribution of individuals in space is seldom, if ever, random. Most Tzm:l species tend to have ~~~
- GENOTYPIC REVERSION BY HYDROXYLAMINE: THE ORIENTATION OF GUANINE-HYDROXYMETHYLCYTOSINE AT MUTATED SITES IN PHAGE T4 rII...GENOTYPIC REVERSION BY HYDROXYLAMINE: THE ORIENTATION OF GUANINE-HYDROXYMETHYLCYTOSINE AT MUTATE33 SITES IN PHAGE T4 r l l REUBEN LEVISOHNZ Department of Genetics, Uniuersity of Wisconsin, Madison, Wisconsin 53706 Received October 14, 1966 YDROXYLAMINE (HA) is known to induce point mutations ~~~
- LINKAGE DISEQUILIBRIUM BETWEEN TWO SEGREGATING NUCLEOTIDE SITES UNDER THE STEADY FLUX OF MUTATIONS IN A FINITE POPULATION...LINKAGE DISEQUILIBRIUM BETWEEN TWO SEGREGATING MUTATIONS IN A FINITE POPULATION1 NUCLEOTIDE SITES UNDER THE STEADY FLUX OF TOMOKO OHTA AND MOT00 K I M U R A National Institute of Genetics, Mishima, Japan Received July 31, 1970 N our previous reports (OHTA and KIMURA 1969a, b, 1970), we have studied ~~~
- THE DISTRIBUTION OF MUTATIONAL SITES AFFECTING RESISTANCE TO AMETHOPTERIN IN DIPLOCOCCUS PNEUMONIAE...THE D'ISTRIBUTION OF MUTATIONAL SITES AFFECTING RESISTANCE TO AMETHOPTERIN IN DZPLOCOCCUS PNEUMONZAE' FRANCIS M. SIROTNAK, RAMONA B. LUNT AND DORRIS J. HUTCHISON Division of Experimental Chemotherapy, Sloan-Kettering Institute for Cancer Research, and Sloan-Kettering Division, Graduate School ~~~
- THE NUMBER OF HETEROZYGOUS NUCLEOTIDE SITES MAINTAINED IN A FINITE POPULATION DUE TO STEADY FLUX OF MUTATIONS...(1964) studied the number of alleles maintained in a finite population, assuming that each mutant is an allele not preexisting in the population. In the present paper I will use a different model and will investigate the num- ber of heterozygous sites per individual and some related quantities ~~~
- GENETIC RECOMBINATION IN DNA-INDUCED TRANSFORMATION OF PNEUMOCOCCUS. V. THE ABSENCE OF INTERFERENCE, AND EVIDENCE FOR THE SELECTIVE ELIMINATION OF CERTAIN DONOR SITES FROM THE FINAL RECOMBINANTS...as much as a twofold dif- ference in the recombination frequency between two sites when two independ- ently prepared cultures of the same recipient strain are transformed by the same donor DNA preparation. This inherent variability of recombination frequency must be taken into account in making ~~~

