Open Access. Powered by Scholars. Published by Universities.®
- Keyword
Articles 1 - 3 of 3
Full-Text Articles in Biology
Enhanced Dna Repair Of Serratia Marcescens, S. Typhimurium, And Saccharomyces Cerevisiae By Evening Primrose (Oenothera Spp.) Oil, Amanda Lynn Rahe
Enhanced Dna Repair Of Serratia Marcescens, S. Typhimurium, And Saccharomyces Cerevisiae By Evening Primrose (Oenothera Spp.) Oil, Amanda Lynn Rahe
Honors Theses, 1963-2015
Evening Primrose oil (EPO) is a suspected anticarcinogen, however, little is known about its method of stopping and/or slowing tumor growth. The present research used S. marcescens, S. typhimurium, Escherichia coli, Staphlyococcus aureus, and S. cerevisiae as cellular models to investigate the antimutagenic properties of EPO. Ultraviolet radiation was used as a mutagen. Each organism was screened for mutations at various lengths of UV light exposure and plated on appropriate media. One period of UV exposure that represented 10% population kill was chosen for each organism, and the organism was once again exposed to UV light …
Comparisons Of Plant Species Richness, Relative Abundance, And Diversity In Two Prairie Restorations And Two Remnant Prairie Preserves In Stearns County, Minnesota, Christopher J. Thompson
Comparisons Of Plant Species Richness, Relative Abundance, And Diversity In Two Prairie Restorations And Two Remnant Prairie Preserves In Stearns County, Minnesota, Christopher J. Thompson
Honors Theses, 1963-2015
Prairies once covered vast areas of the Midwestern United States. In Minnesota, less than one percent of the state's original eighteen million acres of prairie remains. Restoration of prairie vegetation has become a popular means of augmenting preservation efforts and increasing the area of this rare native habitat. In this study I used species-area and rank abundance relationships to compare the species richness and diversity of restored prairies at St. John's University and Sand Prairie to remnant prairie preserves at Roscoe and Sand Prairie (all in Stearns County, Minnesota). I visually estimated relative abundance at each site using randomly placed …
The Use Of The Dna Comet Assay To Detect Genetic Damage In Rana Pipiens Taken From Affected Versus Non-Affected Sites, Lisa Marie Hood
The Use Of The Dna Comet Assay To Detect Genetic Damage In Rana Pipiens Taken From Affected Versus Non-Affected Sites, Lisa Marie Hood
Honors Theses, 1963-2015
Deformed frogs have been appearing frequently in Minnesota and throughout the United States. One hypothesis for the cause of deformities is genetic damage as a result of pesticides. This project will use the DNA Comet Assay to determine the extent of genetic damage in affected sites (sites with a greater number of deformities) versus non-affected sites (sites with fewer deformities). The DNA Comet Assay involves electrophoresis of cells in which the membranes have been solubilized and the DNA uncoiled. Electrophoresis spreads the genetic material. The length of the spread indicates the amount of genetic damage in the form of single …