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Genetics and Genomics Commons

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Full-Text Articles in Genetics and Genomics

Evolution Of The Holozoan Ribosome Biogenesis Regulon, Seth J. Brown, Michael D. Cole, Albert J. Erives Sep 2008

Evolution Of The Holozoan Ribosome Biogenesis Regulon, Seth J. Brown, Michael D. Cole, Albert J. Erives

Dartmouth Scholarship

The ribosome biogenesis (RiBi) genes encode a highly-conserved eukaryotic set of nucleolar proteins involved in rRNA transcription, assembly, processing, and export from the nucleus. While the mode of regulation of this suite of genes has been studied in the yeast, Saccharomyces cerevisiae, how this gene set is coordinately regulated in the larger and more complex metazoan genomes is not understood. Here we present genome-wide analyses indicating that a distinct mode of RiBi regulation co-evolved with the E(CG)-binding, Myc:Max bHLH heterodimer complex in a stem-holozoan, the ancestor of both Metazoa and Choanoflagellata, the protozoan group most closely related to animals. These …


A Tale Of Two Investigations In Molecular Biology: The Use Of Pcr Technology To Identify Bacteria Containing Genes For Pha Synthesis And The Antibiotic Sensitivity Profile Of Vibrio Species B-18, Diana B. Lizarazo Jan 2008

A Tale Of Two Investigations In Molecular Biology: The Use Of Pcr Technology To Identify Bacteria Containing Genes For Pha Synthesis And The Antibiotic Sensitivity Profile Of Vibrio Species B-18, Diana B. Lizarazo

Honors Projects

The Vibrio species, B-18, produces PHA, a bacterial storage material with application as a biodegradable plastic. Phase one of this project aimed at determining if PCR technology could be used to find other bacteria that produce a similar type of PHA. Results showed that the primer sets utilized were not able to identify bacteria with PHA genes. Phase two hoped to discover if it would be possible to introduce Escherichia coli plasmids into B-18 using electroporation. Results demonstrated that electroporation was not useful for introducing plasmids into B-18.