Brandt Nichols and Dr. Von D. Jolley, Plant and Wildlife Maize (Zea maize L.) roots prolifically explore soil and this requires less intensive phosphorus (P) fertilization than less efficient species, such as potato (Solanum tuberosum L.). Crops are not grown in isolation and species requiring high P are often grown in rotation with low P […]
Archives for August 2013
Assessing the Effects of Primer Specificity on Eliminating Numt Co-amplification in DNA Barcoding
Matthew Moulton and Dr. Michael Whiting, Department of Biology Introduction DNA barcoding is a method of species identification based on sequencing a short mitochondrial DNA fragment of Cytochrome Oxidase I (COI). A database of over 500,000 of these COI fragments, known as “barcodes,” has been established for nearly 38,000 species and is currently being used […]
Bromus tectorum: Cheating its Way to the Top
Keith R. Merrill and Dr. Craig E. Coleman, BYU Plant and Wildlife Sciences Introduction Bromus tectorum (cheatgrass, or downy brome) is an exotic annual weed (recently?) introduced to the United States (ca. 1890) . Since its introduction, B. tectorum has been extremely effective at invading the Intermountain West, displacing native vegetation and causing extensive loss […]
Prolactin’s Effect on CCL28 Gene Expression
Susanne Linderman and Dr. Eric Wilson, Microbiology and Molecular Biology The purpose of my project was to determine whether or not the hormone prolactin had an effect on CCL28 gene expression. CCL28 is a chemotactic protein (chemokine) that attracts IgA antibody secreting cells (ASC) to the lactating mammary gland. Receptor proteins on the surface of […]
Stable Isotope Ratios in Leg Hairs A Better Diagnostic Tool for Eating Disorders
Stephanie Lindblad and Professor Beverly Roeder, Biology Anorexia and bulimia are eating disorders that are extremely harmful and difficult to accurately diagnose. Currently the most frequent methods of diagnosis are subjective interviews and questionnaires. One example of these psychological diagnostic tools is the DSM-IV test, which has some serious problems associated with it. It relies heavily on […]
Does SNAP-25 Act as a V-SNARE?
Nathan La Monica and Dr. Dixon Woodbury, Physiology & Developmental Biology SNAP-25, a protein that is found abundantly in the brain, is a key player in the process of releasing neurotransmitters. Vesicles, or small spheres of lipid membranes, contain neurotransmitters and have numerous proteins that extend outward from the vesicle. To release the neurotransmitters proteins […]
Testing for the Mafia Mouse Suicide Gene
Robert Kitz and Dr. Sandra Burnett, Microbiology & Molecular Biology The Macrophage Fas-Induced Apoptosis (Mafia) mouse is a transgenic mouse model designed by Dr. Sandra Burnett to study the role of macrophages in the absence of macrophages. The Mafia transgene contains the genetic code for the Green Florescent Protein, a suicide gene and a c-fms […]
DNA Barcoding in Chenopodium
Benjamin L. King and Dr. Peter J. Maughan, Plant and Animal Sciences DNA barcoding is one of the most important, novel techniques to be introduced in molecular systematics and genetics research in the last decade. Barcoding has been established as a consistent and reliable indicator of taxonomic relationships in eukaryotes, particularly in animals, where a […]
Identification and Characterization of an Effective Antimicrobial Peptide Defensin and its Effects on Transmission Efficiency
Kody Johnson and Dr. David Erickson, Department of Microbiology and Molecular Biology Among many transmissible infectious diseases falls the Bubonic Plague, a disease that is caused by Yersinia pestis, a bacterium. It is still a concern because there have been human cases as recent as last year in our home state of Utah. While health […]
Twinkle Primase/Helicase Protein in Arabidopsis thaliana
Travis Hunt and Dr. Brent Nielsen, Microbiology and Molecular Biology The overall goal of the project was to study the role of DNA recombination in maintenance of plant mitochondrial DNA (mtDNA). Recombination is the process by which a molecule of DNA is nicked or broken and then the end is joined to a different but […]
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