Sökning: "sperm ageing"

Hittade 2 avhandlingar innehållade orden sperm ageing.

1. 1. Selection in sperm and its consequences : Exploring haploid selection, ageing and epigenetic effects in sperm

   Författare :Cosima Hermans Née Hotzy; Simone Immler; Göran Arnqvist; Mariana Wolfner; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sperm; evolution; selection; haploid selection; epigenetics; sperm-mediated effects; trans-generational effects; sperm ageing; sperm senescence;

   Sammanfattning : Sexually reproducing eukaryotes are typically going through a biphasic life cycle with a diploid and a haploid phase. Unlike in plants where selection on haploid pollen genotypes is well established, the possibility of selection occurring in animal sperm is currently not known. LÄS MER

3. 2. Studies of molecular mechanisms of telomere maintenance in Naumovozyma castellii

   Författare :Ahu Karademir Andersson; Molekylär cellbiologi; []
   Nyckelord :YEAST; Saccharomyces castellii; Naumovozyma castellii; Processvity; Telomerase; Telomere; ALT; Strain engineering;

   Sammanfattning : Telomeres are special DNA-protein structures that protect ends of chromosomes from being recognized as double-strand breaks. Telomeres consist of tandemly repeated units of TG-rich DNA and associate with telomere-specific proteins. LÄS MER