Barrett, The Honors College Thesis/Creative Project Collection
Barrett, The Honors College at Arizona State University proudly showcases the work of undergraduate honors students by sharing this collection exclusively with the ASU community.
Barrett accepts high performing, academically engaged undergraduate students and works with them in collaboration with all of the other academic units at Arizona State University. All Barrett students complete a thesis or creative project which is an opportunity to explore an intellectual interest and produce an original piece of scholarly research. The thesis or creative project is supervised and defended in front of a faculty committee. Students are able to engage with professors who are nationally recognized in their fields and committed to working with honors students. Completing a Barrett thesis or creative project is an opportunity for undergraduate honors students to contribute to the ASU academic community in a meaningful way.
As a result of drawing these parallels, this thesis will also explore some of the more modern uses of Stoicism - for example, those discussed in A Guide To The Good Life by William B Irvine, and Stoic Warriors by Nancy Sherman. Irvine focuses primarily on the use of Stoicism to avoid the factors of“chronic dissatisfaction” that afflict much of our modern-day lives - an absence of control, unhappiness, and erroneous personal values, to name a few. Sherman takes a more targeted approach - the application of Stoic philosophy to the workings of the military mentality and instinct. Sherman explores how being “Stoic” is taught as a part of military bearing, specifically when serving in the American forces. Stoic values are used to create a culture of discipline and self-control in the military - as Sherman puts it, “The idea that one’s happiness could depend solely on one’s own virtue, and that one’s agency and control might be bulletproof, appealed to [them]” (Sherman, 11). These authors’ perspectives are just two examples of how Stoicism can be applied in the modern age, as will be shown in further detail in subsequent sections.
To determine if the disruption of the MMR pathway results in the reduced conservation of methylated adenines as well as an increased tolerance for mutations that result in the loss or gain of new GATC sites, we surveyed individual clones isolated from experimentally evolving wild-type and MMR-deficient (mutL- ;conferring an 150x increase in mutation rate) populations of E. coli with whole-genome sequencing. Initial analysis revealed a lack of mutations affecting methylation sites (GATC tetranucleotides) in wild-type clones. However, the inherent low mutation rates conferred by the wild-type background render this result inconclusive, due to a lack of statistical power, and reveal a need for a more direct measure of changes in methylation status. Thus as a first step to comparative methylomics, we benchmarked four different methylation-calling pipelines on three biological replicates of the wildtype progenitor strain for our evolved populations.
While it is understood that these methylated sites play a role in the MMR pathway, it is not fully understood the full extent of their effect on the genome. Thus the goal of this thesis was to better understand the forces which maintain the genome, specifically concerning m6A within the GATC motif.