Browsing University Undergraduate Research Fellows (1968–2012) by Department "Biology"
Now showing items 1-20 of 53
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(1977)The purpose of this study was to investigate the cell-mediated activity of the facultative intracellular parasite, Listeria Monocytogenes, in the guinea pig. Special emphasis was placed upon the particular subcellular ...
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(1993)Protein extracts from Anabaena sp. strain PCC 7120 contain the site-specific DNA-binding proteins BifA and BifB. The bifA gene was recently cloned in our laboratory using a transcriptional interference strategy. When applied ...
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(1997)What are the cellular mechanisms that govern when the outgrowing neurite of a neuron will branch? This research analyzed one possible biochemical pathway through which environmental and cellular signals are transduced into ...
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Characterization of Fluffy A. nidulans Mutants Induced by 5-Azacytidine and 4-Nitroquinoline-1-Oxide (1991)The manner in which the fluF mutation was isolated makes it very interesting because it suggests that it may arise from an epigenetic defect. 5-Azacytidine (5-AC) treatment results in a high frequency of conversion of wild ...
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(2011-08-08)Shwachman Diamond syndrome is an autosomal recessive disease associated with pancreatic insufficiency, skeletal abnormalities, and bone marrow failure. The de Figueiredo lab has recently shown physical and genetic interactions ...
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(1983)A new in vitro test for susceptibility to induced chromosomal damage is described. It involves treating primary fibroblast cultures with a known clastogen, bleomycin. The test differs from those previously published in ...
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(1982)The research reported in this thesis demonstrates that the initial steps for pyrimidine biosynthesis in the cellular slime mold Dictyostelium discoideum are catalyzed by the enzymes carbamoyl phosphate synthetase (CPSase, ...
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(1977)A key point in the regulation of pyrimidine biosynthesis by prokaryotic organisms is the enzyme Aspartate Transcarbamylase. This enzyme catalyzes the reaction of carbamyl phosphate plus aspartate to yield carbamyl aspartate, ...
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(2012-04-26)Protein kinases are enzymes which phosphorylate other proteins and often play critical regulatory roles in cellular metabolism. We studied the effects of deletion of the TDA1 gene in Saccharomyces cerevisiae. TDA1 encodes ...
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(1979)Microfilaria of Dirofilaria immitis from two heavily infected dogs were detected and measured using the Modified Knott's technique and the Difil Filter testᵃ. Variations in the procedures of the two tests were compared as ...
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Effects of Experience and Meaningfulness on Learning and Memory in a Sensory Restricted Environment (1984)This study examines two previously untested conditions in a sensory restricted environment: meaningfulness and experience. Meaningfulness was measured by employing three different levels of learning material. The learning ...
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(1982)Juvenile hormone (JH), a sesquiterpene compound, acts as a morphogenetic hormone in insects; JH permits expression of the larval genome and inhibits expression of the adult genome. Previous experiments have indicated that ...
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(1979)Relatively little is known about the stress response in invertebrates or how to measure it. Hyperglycemia (high blood sugar) has been recommended as a possible indicator of stress in animals. The degree of stress effects ...
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(1978)Nitrogen dioxide and nitrite toxicity were investigated using lactate dehydrogenase and pyruvate kinase as indicators of cell damage. Lung tissue enzyme levels were concurrently studied to assess enzyme release. No change ...
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(1979)The spontaneous decarboxylation of 4-nitrobenzisoxazole-3-carboxylic acid (4-NB-3-CA) was studied kinetically in dimethyl sulfoxide (DMSO) in the presence and absence of the naturally occurring bile salt surfactant, sodium ...
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(1987)Bacillus thuringiensis spores were grown on nonsupplemented, 0.1, 0.5, or 1.0 percent glucose supplemented nutrient agar. Spores were isolated using a density gradient of Angiovist. The spore coats were removed through ...
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(1980)Allozymic variation at 20 loci determined by isozyme electrophoresis was examined for 10 populations of Peromyscus maniculatus including a total of 159 specimens representing 3 subspecies and 5 ecotypes ranging from Baja ...
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(1987)The ciliophoran Paramecium tetraurelia, has large exocytotic (secretory) organelles called trichocysts. Although considerable work on the development, genetics and physiology of the trichocyst as an exocytotic organelle ...
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(2011-08-08)Translation has often been ignored or dismissed as an unimportant and theoretically impossible field. Scholars have proposed numerous theories attempting to explain, illustrate, and ultimately understand the process of ...
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(1982)Several alleles exist for a polymorphic esterase locus located on chromosome-8 in Mus musculus. The locus, which codes for esterase-2, is expressed as four alleles including an Es-2ᴬ (null) allele exhibiting no protein ...