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Articles 1 - 9 of 9
Full-Text Articles in Genetics and Genomics
How A Cell Knows Where To Divide: Oscillation Of Mind In Vivo, Colby Ferreira
How A Cell Knows Where To Divide: Oscillation Of Mind In Vivo, Colby Ferreira
Senior Honors Projects
Over two-million people in the United States are infected by antibiotic resistant bacteria each year. Of this number 23,000 die from these infections and other complications. Due to this, novel antibiotic targets are constantly being investigated. One process in prokaryotes that holds promise is cellular division. Bacterial cells grow and reproduce using a series of proteins known as the cell division machinery. This machinery enables the division of the parental cell into two identical daughter cells. The cell division machinery is similar between bacterial taxa, making it an ideal target for new classes of antibiotics. Therefore, understanding the molecular mechanisms …
Crispr Gene Editing In The Sea Squirt, Ciona Intestinalis, Evelyn Siler, Steven Irvine
Crispr Gene Editing In The Sea Squirt, Ciona Intestinalis, Evelyn Siler, Steven Irvine
Senior Honors Projects
Genetic manipulation has come a long way in the past ten years alone. Scientists have had access to gene editing techniques for decades, but until recently these methods have proven to be expensive and unpredictable. However, thanks to the development of a new, more efficient genome editing strategy called CRISPR/Cas9, more aggressive progress can now be made in genetics research.
CRISPR is not a machine or a physical tool, but rather it is a system that involves introducing a protein into a cell, along with a DNA segment that will attract the protein to a desired location on the DNA. …
Genetic Testing And A Real World Case Of Lynch Syndrome, Paige Montanaro
Genetic Testing And A Real World Case Of Lynch Syndrome, Paige Montanaro
Senior Honors Projects
In recent years, advancements in genetic testing methods have revolutionized the medical field by enhancing the ability to identify persons with an inherited predisposition to cancer. According to the American Society for Clinical Oncology, individuals should undergo genetic testing when he or she meets the following criteria: the individual demonstrates familial history that indicates a predisposition to certain cancers, the test can be adequately interpreted, and the results will aid in the diagnosis, treatment, or management of the patient or additional family members at risk. Genetic testing can be done on samples of hair, skin, blood, amniotic fluid, or other …
Science, Between The Lines: Rosalind Franklin, Rachael Renzi
Science, Between The Lines: Rosalind Franklin, Rachael Renzi
Senior Honors Projects
The purpose of this paper is to contrast scientific rhetoric with creative biographical writing style. Both forms of communication rely on specific syntax and styles to describe research findings to the appropriate audiences, but the often passive format of scientific literature excludes the passionate reasonings of the researcher. In order to understand why the scientist is kept separate from his or her published findings, I am going to experiment with the two contrasting forms. Throughout the paper, each form will be tested and used at varying levels. Both scientific and creative writing will be mixed. To emphasize the technically dense …
The Role Of Cellulose Synthase-Like D Genes In Tip Growth Of Physcomitrella Patens, Erin E. Killeavy, Arielle Chaves, Alison Roberts
The Role Of Cellulose Synthase-Like D Genes In Tip Growth Of Physcomitrella Patens, Erin E. Killeavy, Arielle Chaves, Alison Roberts
Senior Honors Projects
Physcomitrella patens is a non-vascular plant with a relatively small genome and is amongst the few eukaryotic organisms that have a high rate of homologous recombination. This is valuable in biological research because it allows for targeted genetic modification of the organism. In vascular plants like Arabidopsis thaliana, a model organism, Cellulose Synthase-like D (CSLD) genes have been discovered to be important in tip growth. This type of growth is observed in the pollen tubes and root hairs of these plant types. The CSLD genes in Arabidopsis were found to play a crucial role in the growth of …
The Cancer Genome Atlas (Tcga): Breast And Ovarian Cancers, Laura Ann Riccio
The Cancer Genome Atlas (Tcga): Breast And Ovarian Cancers, Laura Ann Riccio
Senior Honors Projects
The field of genomics originated in the 1970’s starting with the sequencing of small organisms’ genomes such as the bacterium, Haemophilus influenzae, and the yeast, Saccharomyces cerevisiae. A genome is the complete ordered sequence of DNA bases (A, C, G, and T) comprising all of the protein- and RNA-coding genes, as well as all of the regulatory sequences necessary for the construction of an organism. Over time, scientists sequenced the genomes of larger and more complex organisms, eventually leading to the sequencing of the human genome. The Human Genome Project (HGP) was initiated in 1990 and took over ten …
Clpxp Modulates Cell Growth And Morphology In Cell Shape Mutants Of E.Coli, Ryann Murphy
Clpxp Modulates Cell Growth And Morphology In Cell Shape Mutants Of E.Coli, Ryann Murphy
Senior Honors Projects
ClpXP modulates cell growth and morphology in cell shape mutants of E. coli
Ryann Murphy1 and Jodi L. Camberg1
1University of Rhode Island, Department of Cell and Molecular Biology, Kingston, RI, 02881
Penicillin Binding Proteins (PBPs) are a family of prokaryotic membrane proteins named for their propensity to bind the antibiotic penicillin and are involved in remodeling and deposition of peptidoglycan. In wild type Escherichia coli cells, the uniform rod shape is conserved across generations. E.coli cells containing multiple deletions of Low Molecular Weight (LMW) PBPs exhibit irregular shapes. LMW PBP5 (dacA) is a potential …
Analysis Of The Chondroitinase Operon Of Flavobacterium Columnare, Erin L. Sorlien
Analysis Of The Chondroitinase Operon Of Flavobacterium Columnare, Erin L. Sorlien
Senior Honors Projects
Analysis of the chondroitinase operon of Flavobacterium columnare
Erin Sorlien
Major
Cell and Molecular Biology, Chemistry
Advisor
Dr. David R. Nelson
Date
May 2, 2013
Keywords
Flavobacterium columnare, columnaris disease, chondroitin AC lyase, complementation, csl operon
Abstract
Flavobacterium columnare, an opportunistic bacterial pathogen of fish, is the causative agent of columnaris disease (CD). The bacterium is a Gram-negative rod that exhibits gliding motility and avidly forms biofilms. CD affects both wild and cultured freshwater fish, and continues to cause large economic losses to the fish farming industry. According to an investigation conducted by the National Animal Health Monitoring System, CD …
Mutation And Complementation Of A Cellulose Synthase (Cesa) Gene, Ahmed Y. El-Araby
Mutation And Complementation Of A Cellulose Synthase (Cesa) Gene, Ahmed Y. El-Araby
Senior Honors Projects
Cellulose is a carbohydrate polymer that is composed of repeating glucose subunits. Being the most abundant organic compound in the biosphere and comprising a large percentage of all plant biomass, cellulose is extremely plentiful and has a significant role in nature. Cellulose is present in plant cell walls, in commercial products such as those made from wood or cotton, and is of interest to the biofuel industry as a potential alternative fuel source. Although indigestible by humans, cellulose is nutritionally valuable, serving as a dietary fiber. Because of its ubiquity and importance in many areas, studying cellulose will prove to …