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- All Subjects: Genetics
- Creators: Department of English
- Resource Type: Text
Informed by Pope John Paul II’s life and writings, this project takes a faith-based, humanities approach to addressing the issue of homelessness. The thesis combines writing, music, and Catholicism to inspire audiences and motivate them to make tangible changes for those in need. Through poetry, creative nonfiction, and letters, the written portion of the thesis depicts true, individual encounters with people who are homeless. These stories are connected by themes of nature, simplicity, beauty, humility, and human dignity. The creative portion of this thesis is a music video with an original song called Unspoken Words. The song includes violin, ukulele, and vocal tracks, lyrics rooted in Pope John Paul II’s poetry, a strong emphasis on the importance of acknowledging and affirming human dignity, and a call to action at the end. The call to action invites audiences to, if possible, donate financially to organizations within the Diocese of Phoenix, which are linked in the video description. These organizations include the Office of Mental Health Ministry, the Humanitarian Aid Fund for Ukraine, and the Charity and Development Appeal. The video also invites all audience members to be kind with intention in order to mentally, emotionally, and spiritually brighten the lives of those around them.
A mutation rate refers to the frequency at which DNA mutations occur in an organism over time. In organisms, mutations are the ultimate source of genetic variation on which selection may act. However, a large number of mutations over time can be detrimental to the cell. Mutation rates are the frequency at which these new mutations arise over time. This can give great insight into DNA repair mechanisms abilities as well as the mutagenic abilities of selected factors. CRISPR-Cas9 is a powerful tool for genome editing, but its off-target effects are not yet fully understood and studied. With its increasing implementation in science and medicine, it is crucial to understand the mutagenic potential of the tool. S. cerevisiae is a model organism for studying genetics due to its fast growth rate and eukaryotic nature. By integrating CRISPR-Cas9 systems into S. cerevisiae, the mutational burden of the technology can be measured and quantified using fluctuation assays. In this experiment, a fluctuation assay using canavanine selective plates was conducted to determine the mutational burden of CRISPR-Cas9 in S. cerevisiae. Multiple trials revealed that various strains of CRISPR-Cas9 had a mutation rate up to 3-fold higher than that of wild-type S. cerevisiae. This information is essential in improving the precision and safety of CRISPR-Cas9 editing in various applications, including gene therapy and biotechnology.