8 Results
for term "sites"
- SOME IRREGULARITIES IN THE NOMENCLATURE OF BACTERIOPHAGE T4 DNA POLYMERASE AMBER MUTANTS...JOHN W. DRAKE Department of Microbiology, Uniuersity of Illinois, Urbana, Illinois 61801 Received July 9, 1971 A recent description of mutants of T4 carrying lesions within the structural gene for DNA polymerase (gene 43) grouped several dozen amber mutants into eleven sites (ALLEN, ALBRECHT ~~~
- SITE OF ACTION OF 3',5'-CYCLIC ADENOSINE MONOPHOSPHATE IN PRODUCTION OF TRYPTOPHANASE IN ESCHERICHIA COLI...SHORT PAPERS SITE OF ACTION OF 3',5'-CYCLIC ADENOSINE MONOPHOSPHATE IN PRODUCTION OF TRYPTOPHANASE IN ESCHERICHIA COLZ LADONNA IMMKEN AND DAVID APIRION Department of Microbiology, Washington University School of Medicine, St. Louis, Missouri 63110 Received September 27, 1971 ABSTRACT 3',5' cydic ~~~
- BISULFITE MUTAGENESIS IN BACTERIOPHAGE T4...bisulfite mutagenicity. In both instances, however, a maxi- mum mutagenic response was observed within very short treatment intervals, no further mutagenicity being observed thereafter. The results with E. coti showed that only those mutants believed to revert at sites containing guanine: cytosine (G: C ~~~
- REPLICATING INSTABILITIES IN YEAST: EVIDENCE FROM SINGLE CELL ISOLATION...). An instability of this kind is specially characterized by being confined to a particular locus or site which continues to give rise to mutational events in future generations by replicating as such. Thus, an unstable locus in one generation gives rise to similarly unstable loci in the next. In yeast, studies ~~~
- SYNTHESIS OF SPECIFIC, STABILIZED MESSENGER RNA WHEN TRANSLOCATION IS BLOCKED IN ESCHERICHIA COLI..., an unknown mechanism of regulation, or several, may be operative here. The regu- lation may not be at the site of repressor action; for example, a full complement of mRNAs may start to be transcribed, but transcription may proceed only to a certain point. Some mRNAs might be completely transcribed, while ~~~
- CARBONIC ANHYDRASE POLYMORPHISM IN A NEW JERSEY POPULATION OF THE WHITE-FOOTED MOUSE PEROMYSCUS LEUCOPUS...in P . m. gracilis. This was attributed to inbreeding and the limited dispersal of mice from birth to mating sites. 318 P. L. W I L M O T AND D. K. U N D E R H I L L RASMUSSEN (1970) has stated the need for more information on the neighbor- hood size of these mice as important in understanding ~~~
- THE IDENTIFICATION OF THE CHROMOSOME BEARING LINKAGE GROUP XII IN THE MOUSE..., and occasionally pair 15 (personal communication), has a proximal secondary constriction near its centromere. It is unknown whether these regions are true secondary constrictions (sites of ribosomal RNA synthesis). We have called these regions negative-staining heteropycnotic regions (NHR) . For a detailed ~~~
- ANALYSIS OF HUMAN CHROMOSOMAL VARIANTS BY QUANTITATIVE ELECTRON MICROSCOPY I. GROUP D CHROMOSOME WITH GIANT SATELLITES...GOLOMB, H. M. and G. F. BAHR, 1971 HUBERMANN, J. and G. ATTARDI, 1966 MAGENIS, R. E., F. HECHT and E. W. LOVIEN, 1970 Heritable fragile site on chromosome 16: Probable localization of haptoglobin locus in man. Science 170: 85-87. MCKUSICK, V. A., 1969 MCKUSICK, V. A., J. A. HOSTETLER and J. A. EGELAND ~~~

