75 research outputs found

    Variability in the molecular organization of the 5S RNA genes among strains of Drosophila melanogaster.

    No full text
    The organization of the 5S RNA cluster has been analyzed in four strains of Drosophila melanogaster by the Southern technique. In some of the strains the 5S RNA cluster appears to be interrupted by an unrelated sequence. In other strains a continuous cluster is present

    Revising the selfish DNA hypothesis: new evidence on accumulation of transposable elements in heterochromatin.

    No full text
    The bulk of the eukaryotic genome is composed of families of repetitive sequences that are genetically silent and exhibit various types of instability. Transposable elements (TEs) are particularly commmon in heterochromatic regions of the genome – a location where TEs might do less damage to their host. Recent advances suggest that the relationship between TEs and heterochromatin might not be quite so straightforward

    Rapid alkaline preparation for yeast circular covalently closed DNA molecules.

    No full text
    corecore