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Showing result 1 - 5 of 142 swedish dissertations matching the above criteria.
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1. Transcriptional and epigenetic control of gene expression in embryo development
Abstract : During cell specification, temporal and spatially restricted gene expression programs are set up, forming different cell types and ultimately a multicellular organism. In this thesis, we have studied the molecular mechanisms by which sequence specific transcription factors and coactivators regulate RNA polymerase II (Pol II) transcription to establish specific gene expression programs and what epigenetic patterns that follows. READ MORE
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2. Gene regulation during development by chromatin and the Super Elongation Complex
Abstract : Developmental processes are carefully controlled at the level of transcription to ensure that the fertilized egg develops into an adult organism. The mechanisms that controls transcription of protein-coding genes ultimately ensure that the Pol II machine synthesizes mRNA from the correct set of genes in every cell type. READ MORE
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3. Regulation of gene expression in fruit flies : how does it start, and will it be remembered?
Abstract : One of the most distinctive features of eukaryotic chromosomes is the bundling of DNA together with functionally associated RNA and proteins in chromatin. This allows huge amounts of DNA to be packed inside the very tiny space of the nucleus, and alterations in the structure of chromatin enable access to the DNA for transcription (“reading” genes by production of RNA copies). READ MORE
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4. The Role of the Homeobox Gene ATHB16 in Development Regulation in Arabidopsis thaliana
Abstract : There are 42 members of the homeodomain-leucine zipper (HDZip) family of transcription factors in Arabidopsis thaliana. This thesis focuses on the functional analysis of one member of this family, ATHB16, and on the biochemical properties of HDZip proteins. READ MORE
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5. Sexually Dimorphic Gene Expression in the Mammalian Brain
Abstract : In recent times, major advances have been made towards understanding sexual dimorphism in the brain on a molecular basis. This thesis summarises my modest contributions to these endeavours. Sexual dimorphisms are manifested throughout the spectrum of biological complexity, and can be studied by numerous approaches. READ MORE