Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 189 for “"phenotypic variation"”.
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Phenotypic variation in Photorhabdus temperata K122
… spp. have the ability to exist in either of two phenotypically different forms. The bacterial form isolated from the nematode is referred to as the primary phenotype variant, whilst the phenotypically different form is referred to as secondary phenotype variant. This secondary variant is isolated …
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Natural genetic and phenotypic variation for aging
… why and how we age, we must explore the variation of aging in populations, both genetically and phenotypically. Historically, two main approaches have been used to try and understand how and why we age, including evolutionary and mechanistic approaches. Evolutionary approaches to studying …
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The Influence of Phenotypic Variation on Criminal Judgement
… this study was to investigate the influence of phenotypic variation on criminal judgment. This study had two phases. In the first phase, participants rated multiple headshot photographs on the degree to which African American men possess pronounced Afrocentric features (fuller lips, broader …
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Phenotypic variation and thermoregulation of the human hand
… by both integration and functional dexterity, phenotypic variation in hand and digit proportions across human populations shows broad ecogeographic patterns. These patterns have been associated with climate adaptation. However, the theory linking climate adaptation to such ecogeographic …
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Genotypic and Phenotypic Variation of the Florida Scrub Lizard (Sceloporus Woodi)
In my 1st chapter I investigate the phenotypic variation of the Florida scrub lizard by examining sprinting and jumping ability. These are key performance measures that have been widely studied in vertebrates. The vast majority of these studies, however, use methodologies that lack ecological …
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Phenotypic variation and bistability within flagellar gene network in Salmonella Typhimurium
In Salmonella enterica serovar Typhimurium, more than 50 genes divided among at least 17 operons are involved in flagellar biogenesis and chemotaxis. One of the critical features of this process is coupling of the gene expression to assembly. Like flagellar assembly, gene expression also proceeds …
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Genetic Subclones Identify Phenotypic Variation in Diffuse Large B-Cell Lymphoma
… DLBCL tumours contain genetic subclones, with phenotypic variation that reflects B cell development. Here, I present the largest single-cell DLBCL dataset to date, consisting of 91 cases with paired single-cell RNA (scRNA) and single-cell ATAC (scATAC) sequencing. This work identified genetic …
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Phenotypic Variation in Native North American and Invasive Chinese Populations of Plantago Virginica
… Also, introduced populations had less phenotypic diversity in several traits compared the native populations. These patterns are consistent with the effects of natural selection, however, the role of random genetic drift cannot be ruled out. They also suggest that post-introduction …
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Phenotypic Variation, Fingerprints, and Human Behavior: An Application of the Family-Pedigree Paradigm
Made available in DSpace on 2014-12-10T21:07:49Z (GMT). No. of bitstreams: 1 7414562.pdf: 11906856 bytes, checksum: cb4f5ff887070dd3e6e8a9dd6c3aef32 (MD5) Previous issue date: 1974
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Analysis of the Phenotypic Variation of Odontometric Traits in Two Species of Mice
Made available in DSpace on 2014-12-10T18:13:33Z (GMT). No. of bitstreams: 1 6808144.pdf: 4820048 bytes, checksum: 962bc6db555dfd2efa087463ac288be0 (MD5) Previous issue date: 1967
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On the Origin of Phenotypic Variation: Novel Technologies to Dissect Molecular Determinants of Phenotype
… the dissection of molecular factors underlying phenotypic variation. The first part of my work is focused on finding rare genetic variants in pooled DNA samples, leading to the development of a novel set of algorithms, SNPseeker and SPLINTER, applied to next-generation sequencing data. The …
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Understanding Patterns of Phenotypic Variation in a Contemporary Population and Ancient Lineage of Fishes
… individuals in wild populations are often phenotypically diverse, exhibiting differences in many complex traits. While genetic variation undoubtedly explains some portion of phenotypic diversity in the wild, its effects can be obscured by environmental factors, which often also play a large …
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Fungal friend or foe: Phenotypic variation of Aspergillus flavus strains within honey bee colonies in the Midwest
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Genetic and epigenetic regulation of the cell wall glycoproteins, Flo10p and Flo11p, generate phenotypic variation in S. cerevisiae
… evolved mechanisms that allow them to generate phenotypic variation. Such phenotypic variation can result from genetic regulation, in which changes in DNA sequence produce the variant phenotype, or epigenetic regulation, in which there are no changes in DNA sequence associated with the variant …
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Phenotypic Variation of the Individuals Buried at San Ignacio Church: Exploring Relatedness in Colonial and Republican Period Bogotá, Colombia.
North Carolina State University Theses Anthropology
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Identification of phenotypic variation across levels of cSOD activity in Drosophila melanogaster reveals that phenotypes are most influenced by second chromosome genetic background and sex at high cSOD activity
… (η2p) were used to partition the amount of variation attributable to sex, cSOD activity, and genetic background across the distal and proximal phenotypes assayed. The absence of cSOD activity results in pervasive changes in phenotypic expression, and these changes are only slightly modified …
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Factors affecting the phenologies of life history traits in two summer annual plant species
… were undertaken to document the amount of phenotypic variation in the phenologies of life history traits, the degree to which selection is acting on these phenologies, and the heritable basis of and genetic correlations among life history and morphological traits.
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Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (Glycine max)
… temperature (CT) is an indicator for genetic variation in transpiration and stomatal conductance. Therefore, the objectives of this research were to identify the genomic regions associated with: (1) δ13C and δ15N using a population of 196 F6-derived recombinant inbred lines (RIL) from PI …
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