Search for dissertations about: "yeast"
Showing result 1 - 5 of 675 swedish dissertations containing the word yeast.
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1. Catabolism of Pyrimidines in Yeast
Abstract : Pyrimidines are important precursors for nucleic acids, and constantly synthesized and degraded in the cell to maintain a balanced supply. Many microoganisms can also extract the nitrogens from the pyrimidine ring, and use them as a nitrogen source when “preferred” sources are absent. READ MORE
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2. RAP1 at the Yeast Telomere
Abstract : Telomeres are specialized complexes of DNA and proteins that cap and confer stability to the ends of eukaryotic chromosomes. The telomeric DNA of most eukaryotes is composed of tandemly arranged short repeats. Within the budding yeasts these repeats are diverged in length as well as in nucleotide composition. READ MORE
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3. Importance of the Clr2 protein in heterochromatin formation in the fission yeast Schizosaccharomyces pombe
Abstract : Epigenetics is an area of biology that studies heritable changes in gene ex- pression without any change in the DNA sequence. The most studied epige- netic mechanisms are DNA methylation, RNA interference and histone mod- ifications. READ MORE
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4. Chromosome synapsis and recombination in yeast meiosis
Abstract : Meiosis is a cell division process that produces haploid gametes from diploid cells. Several important meiotic events take place during prophase of meiosis I, most important being homologous chromosome pairing, meiotic recombination and formation of the synaptonemal complex (SC). READ MORE
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5. The Genetics of Adaptation and Evolvability in Yeast
Abstract : Evolution is the hereditary change in life forms that has shaped the divergence of all organisms that inhabit planet Earth. I used the yeast Saccharomyces cerevisiae to study how adaptive evolution increases the fitness and changes the properties of experimental and natural yeast populations. READ MORE