Browsing by Subject "Major biology"
Now showing items 21-40 of 55
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(Texas A&M University. Libraries, 1986)Many genes are expressed exclusively during plant embryo development. Among these, seed storage protein genes are of primary interest because they are expressed at very high levels only during specific periods of embryo ...
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(Texas A&M University. Libraries, 1987)The metabolism of the bloodstream form of the African trypanosomes (the parasites causing African sleeping sickness) is altered by the availability of O$sb2$. Therefore, it was suspected that O₂ administered under high ...
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(Texas A&M University. Libraries, 1978)The influence of elevated pO₂ on regional blood flow of muscle tissue was studied using the hydrogen electrode technique, modified from that introduced by Aukland, Bower, and Berliner (1963). Baseline studies were conducted ...
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(Texas A&M University. Libraries, 1993)Genomic clones encoding cytosolic triosephosphate isomerase (TPI) and a root-specific gene, and their corresponding cDNA clones have been isolated and characterized from rice. TPI catalyzes the interconversion of ...
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(Texas A&M University. Libraries, 1978)The highly productive and economically valuable estuaries of the United States are under environmental stress. The effects of human beings in most cases will inevitably increase turbidity, siltation and related pollution ...
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(Texas A&M University. Libraries, 1974)A limnological investigation was conducted between January 1971 and September 1971 in the Navasota River and an adjacent floodplain in Grimes County, south-central Texas. The study centered upon the physico-chemical and ...
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(Texas A&M University. Libraries, 1972)The locomotor behavior of goldfish was analyzed in order to establish the role of sound as a cue and especially, to determine its capabilities in orientation. To accomplish this purpose, four goldfish, conditioned to ...
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(Texas A&M University. Libraries, 1991)Membrane trafficking in plant cells was investigated by examining soybean (Glycine max L.) cell suspension cultures. The convergence of the endocytic pathway and the lysosomal and secretory pathways was examined by incubating ...
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(Texas A&M University. Libraries, 1980)The variant specific antigens of Trypanosoma brucei gambiense were purified to homogeneity by a novel surface elution technique followed by lectin-agarose affinity chromatography and ion exchange chromatography. These ...
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Molecular characterization and expression of the dipeptide permease (Dpp) operon of Escherichia coli (Texas A&M University. Libraries, 1994)T he d ip ep tid e perm ease (Dpp) of Escherichia coli transports dipeptides consisting o f Lam ino acids. T he periplasm ic com ponent o f the D pp, the dipeptide-binding protein (D BP) encoded by the dppA gene, also ...
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(Texas A&M University. Libraries, 1982)This study investigated movement and growth of the Unionidae (Mollusca: Bivalvia) of the Little Brazos River, Texas. Turnover rates of individuals (all species pooled) were similar at widely separated pool and riffle sites, ...
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(Texas A&M University. Libraries, 1980)Copepod species and major groups of zooplankton were identified from 513 samples taken at 20 stations on 5 transects in the coastal waters of the northwestern Gulf of Mexico. Monthly samples, using oblique tows and a GULF ...
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(Texas A&M University. Libraries, 1973)Components of the carbon system were followed with bi-monthly sampling for one year (July, 1970, to July, 1971). Measurements included dissolved organic carbon (DOC), particulate organic carbon (POC), carbon dioxide, and ...
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(Texas A&M University. Libraries, 1972)Zoogeographic, ecologic and systematic studies conducted on the pelagic Cnidaria of the Gulf of Mexico revealed 18 species of scyphozoans (including an undescribed species of Nausithoe), approximately 56 species of ...
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(Texas A&M University. Libraries, 1985)Several aspects of the metabolism of the lymnaeid snail Stagnicola bulimoides techella were examined. Studies of respiration rates demonstrated the effects of oxygen concentration, age, reproductive status, weight and ...
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(Texas A&M University. Libraries, 1993)Based on molecular, cellular and genetic studies in a wide variety of organisms, a universal model of cell cycle control emerged. According to the model, mitosis is initiated by the transient activation of Mitosis Promoting ...
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(Texas A&M University. Libraries, 1977)Natural and cultured populations of P. aztecus and P. setiferus and cultured populations of P. stylirostris and P. vannamei were examined for ecto- and endosymbionts. The 18 symbionts which follow were identified from these ...
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(Texas A&M University. Libraries, 1985)Gill ventilation in Aplysia californica is achieved by a stereotypic behavior pattern referred to as Respiratory Pumping (RP). The behavior consists of a rapidly successive contraction of the gill, siphon, mantle and ...
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(Texas A&M University. Libraries, 1969)Three ponds located in Brazos County, Texas, were sampled regularly for a period of one year, from August 1964 through August 1965, in order to study diatom populations on a seasonal basis. Samples were collected from each ...
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(Texas A&M University. Libraries, 1991)The genetic variability of two allotetraploid cultivated cotton species, Gossypium barbadense and G. hirsutum was analyzed for restriction fragment length polymorphisms (RFLPs). The analysis was made on G. barbadense cv. ...