Sökning: "Heterochromatin"

Visar resultat 21 - 25 av 44 avhandlingar innehållade ordet Heterochromatin.

  1. 21. Autophagic programmed cell death in the suspensor and endosperm of Vicia faba : An ultrastructural study

    Författare :Ulla Wredle; Björn Walles; Áron Keresztes; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi;

    Sammanfattning : Programmed cell death (PCD) is a widely spread phenomenon among multi-cellular organisms. Without the deletion of cells no longer needed, the organism will not be able to develop in a predicted way. LÄS MER

  2. 22. Studies of histone modification systems in Schizosaccharomyces pombe

    Författare :Carolina Bonilla; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The genetic information in every cell is carried in the DNA. In eukaryotes the DNA is wrapped twice around proteins called histones forming a repeating unit called the nucleosome, in fibers known as chromatin. Nucleosomes are folded into higher order structures forming the chromosomes. LÄS MER

  3. 23. Chromatin regulators and transcriptional control of Drosophila development

    Författare :Qi Dai; Mattias Mannervik; Albert J. Courey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chromatin; Co-factors; Transcription; Development; Drosophila; Developmental biology; Utvecklingsbiologi; Developmental Biology; miljömedicinsk utvecklingsbiologi;

    Sammanfattning : The development of a multicellular organism is programmed by complex patterns of gene expression. In eukaryotic cells, genes are packaged by histone proteins into chromatin. Chromatin regulators often function as transcription co-factors. LÄS MER

  4. 24. Modulating chromatin by transcription and nucleosome turnover : a genome-wide study in fission yeast

    Författare :Laia Sadeghi; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Eukaryotic DNA is wrapped around histone proteins to form a nucleosome, the basic structural unit of chromatin. Multiple levels of chromatin organization are required to compact DNA into chromosomes, to ensure an accurate cell division. LÄS MER

  5. 25. Exploring the dynamic epigenome in pluripotent stem cells using quantitative methods

    Författare :Angelo Salazar Mantero; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : A totipotent stem cell has the potential to give rise to the trillions of cells in the human body, all carrying the very same genetic information. Through differentiation events, gene expression changes guided by epigenetic mechanisms resulting in specialized phenotypes. LÄS MER