Search for dissertations about: "Genetic influences"
Showing result 1 - 5 of 184 swedish dissertations containing the words Genetic influences.
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1. Alcohol Consumption among Adolescents : Psychosocial and Genetic influences
Abstract : The present thesis is based on four studies focusing on alcohol consumption among Swedish adolescents, and therewith related psychosocial and genetic factors. One main objective was to study the reasons for drinking alcohol among different population - representative samples of adolescents in order to identify motives for drinking. READ MORE
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2. Involvement of the Opioid System in High Alcohol Consumption : Environmental and Genetic Influences
Abstract : It is well accepted that both inherent and environmental factors influence the pathogenesis of alcohol dependence. This thesis investigates the role of the opioid system in the initiation and maintenance of high ethanol intake. READ MORE
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3. Advances in studying the role of genetic divergence and recombination in adaptation in non-model species
Abstract : Understanding the role of genetic divergence and recombination in adaptation is crucial to understanding the evolutionary potential of species since they can directly affect the levels of genetic variation present within populations or species. Genetic variation in the functional parts of the genome such as exons or regulatory regions is the raw material for evolution, because natural selection can only operate on phenotypic variation already present in the population. READ MORE
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4. Genetic and non-genetic influences on some metabolic cardiovascular risk factors : quantitative genetic analyses
Abstract : Structural-equation modeling analyses were applied to data from 302 Swedish twin pairs in order to assess the relative importance of genetic and nongenetic influences on several metabolic cardiovascular risk factors. These middle-aged and elderly twins include monozygotic and dizygotic twins reared apart and together, who came from a population-based national twin register. READ MORE
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5. Ecological drivers and genetic signatures of evolutionary divergence and local adaptation in pike (Esox lucius)
Abstract : The diversity among species, populations, and individuals in nature is astonishing. Genetic and phenotypic variation constitutes the raw material for evolution. It influences how populations respond to changing environments, and can impact long-term survival of species and ecosystem functioning. READ MORE