Search for dissertations about: "de novo gene evolution"
Showing result 1 - 5 of 17 swedish dissertations containing the words de novo gene evolution.
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1. The evolution of ribonucleotide reductases
Abstract : Ribonucleotide reductase (RNR) catalyses the transformation of RNA building blocks, ribonucleotides, to DNA building blocks, deoxyribonucleotides. This is the only extant reaction pathway for de novo synthesis of DNA building blocks and the enzyme is thus necessary for life. RNR is found in all but a few organisms. READ MORE
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2. Mechanisms of Antibiotic Resistance Evolution
Abstract : The continuing emergence and spread of antibiotic resistant bacteria are a threat to various applications in modern medicine and impose a strong economic burden on health systems. The development of new antibiotics is slow and cannot counterbalance the dissemination of resistant bacteria. READ MORE
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3. Genomic studies of mating system variation in flowering plants
Abstract : The striking diversity of reproductive strategies that flowering plants exhibit remains one of the most intriguing conundrums in evolutionary biology. Pollination-related traits and mating system strategies have a major impact on the processes shaping plant evolution through their effects on genetic diversity and selection. READ MORE
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4. Deoxyribonucleoside kinases in bacteria, plants and humans
Abstract : Deoxyribonucleoside triphosphates (dNTPs) are the building blocks of DNA and can be synthesized either de novo or via salvage pathways. The first reaction in the salvage pathway of dNTPs is the conversion of deoxyribonucleosides (dN) into the deoxyribonucleoside monophosphate (dNMP). READ MORE
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5. Hopeful monsters: The role of hybrids in adaptation : The impact of hybridisation and genetic diversity on adaptation to stressful and novel environments
Abstract : Adaptation to novel environments can only occur if natural selection has the raw material to act upon. But small, endangered populations are often genetically depleted, and the acquisition of beneficial de novo mutations often takes too long when population face quick and extreme environmental change. READ MORE