Browsing Biology URC Student Scholarship by Issue Date
Now showing items 1-20 of 216
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Pathogen Damage in a Tropical Rain Forest: The Effects of Biological and Physical Factors on Pathogen Damage to Virola koschnyi .
(1999-01-01)Devastating to native flora and fauna, the continual deforestation of Costa Rica has created an urgent need for reforestation. This deforestation occurs due to human need for pastures to graze livestock and a high demand ... -
The Molecular Evolution of Primitive Skeletal Ryanodine Receptor Isoforms. Alfonso Go & Francisco Valles
(1999-01-01)In cloning and characterizing skeletal ryanodine receptor isoform (RyR1) in primitive vertebrates, we have cloned and sequenced cDNA fragments using degenerate primers on the Xenopus laevis, African Clawed frog. In our ... -
Investigation of the phylogenetic relationships of the genus Thunnus using nuclear satellite DNA
(1999-01-01)The genus Thunnus is within the family Scombridae (mackerels and tunas). Morphological and molecular systematic analyses of the tuna species have resulted in conflicting phylogenetic trees. The most recent molecular ... -
Intron Retention inFish Ryanodine Receptor mRNA Transcript.
(1999-01-01)The ryanodine receptor (RyR) has been found to play a salient role in the transduction of muscle membrane potential to the production of force in a muscle cell. We have determined that the transcript that encodes for the ... -
Factors Affecting the Distribution and Abundance of the Orangethroat Pikeblenny, Chaenopsis alepidota.
(1999-01-01)Little experimental work has been done on fish/invertebrate host interactions in temperate water systems. So during the summer of 1999, we began the preliminary work necessary to examine the nature and effects of the ... -
Subcloning the Stress-induced El Gene from the Bacterial Predator, Bdellovibrio Bacteriovorus .
(1999-01-01)The EL and EL chaperonin proteins are essential for bacterial cell survival, assisting various cytoplasmic proteins to refold correctly after exposure to a stressful environment. It is hypothesized that Bdellovibrio ... -
Horizontal Gene Transfer in the Marine Environment.
(1999-01-01)Antibiotic resistance in bacteria often arises through human use/misuse of antibiotics. Because so much human waste is dumped into the ocean daily, the marine environment becomes a potential biological reservoir of antibiotic ... -
Use of E. coli reporter genes to monitor predatory activity by Bdellovibrio bacteriovorus.
(1999-01-01)The predatory bacterium, Bdellovibrio bacteriovorus, breaks down host proteins as part of the infection process. Two reporter proteins, green fluorescence protein (gfp) and luciferase (lux) were used as monitors of predatory ... -
Analysis of Somatic Mutation in Transgenic Mice Using the HUG-X Reporter Gene.
(1999-01-01)Our lab has generated transgenic mice for studying somatic mutation of antibody genes. The transgene encodes a mouse/human chimeric heavy chain with a stop codon in the variable region (HUG-X). If somatic mutation reverts ... -
Regulation of Immunoglobulin Gene Rearrangement by a Chimeric Mouse-Human Transgene.
(1999-01-01)Immunoglobulin (Ig) genes undergo DNA rearrangement (termed VDJ rearrangement) during B cell development to produce antibodies. The regulation of VDJ rearrangement during B cell development is highly regulated. Once the ... -
Using a Transgenic Immunoglobulin Model to Study Somatic Mutation.
(1999-01-01)One way to achieve variable region diversity in the antibodies produced by B cells is by somatic mutation. Individual nucleotides in rearranged variable regions are replaced with other bases (point mutations), which can ... -
A Study of Conservation Efforts Which Combat Invasive Species in Hawaii.
(2000-01-01)The Hawaiian Islands are the most isolated group of islands on earth. Colonization of the islands occurred slowly, and the few species which made it to the islands diversified widely once established.As part of that ... -
Arroyo Seco Insect Survey -Evaluating the Ecological Restoration. Bonita Thibault & Jasmin Gonzalez
(2000-01-01)We collected samples of aquatic insects living in the Arroyo Seco portion of the L.A. River. Samples collected in the soft-bottom, less disturbed part of the river were compared to those in a restored site alongside a ... -
Distribution and Ecology of the White Point Sicyonia ingentis Population.
(2000-01-01)The ridgeback prawn, Sicyonia ingentis , is a dominant member of the shelf assemblage at White Point, CA. However, despite the commercial viability of this species in other areas, very little is known about the ecology ... -
Chitin In The Granules Of Crustacean Hemocytes.
(2000-01-01)Chitin is the b-1, 4 linked polysaccharide of N-acetylglucosamine. It ranks as the material with the second highest biomass on earth following cellulose. Wheat Germ Agglutinin (WGA), a lectin from wheat, Triticum vulgaris ... -
Drug Detection through Biosensors.
(2000-01-01)Space Motion Sickness (SMS) afflicts astronauts during space shuttle missions. The symptoms of SMS include headache, vomiting, nausea, extreme sensitivity to motion, as well as some other minor maladies. SMS occurs often ... -
Alleviating Telomeric Position Effect Through the Use of AAV Sequences.
(2000-01-01)Telomeres, like centromeres, are chromosomal regions made up of heterochromatic DNA. By definition, heterochromatic DNA regions are not transcribed (ie. are silent) while euchromatic DNA regions are transcribed.This ... -
Comparison of Recombinant Adeno-Associated Virus Gene Therapy Vector Packaging Methods.
(2000-01-01)Adeno-associated virus is being developed as a human gene therapy vector. Recombinant AAV vectors are constructed by replacing the wild type viral genome with a transgene of interest. This recombinant genome is then packaged ... -
Water intake by Hydathodes in CAM plants.
(2000-01-01)CAM plants are specially adapted to withstand arid conditions for long periods without precipitation. In nature, these plants often go for extended periods of time without water intake through the roots. A few research ... -
A Molecular-based Biosensor for the Extracellular Detection of Calcium.
(2000-01-01)A common occurrence that astronauts face during space flight missions is a decrease in bone mass.To monitor this physiological change, a molecular-based biosensor is being developed to detect extracellular levels of Calcium ...