Search for dissertations about: "Repetitive Sequences"

Showing result 1 - 5 of 30 swedish dissertations containing the words Repetitive Sequences.

  2. 1. Repetitive DNA in search of a function - a study of telomeric and centromeric sequences in Chironomus

    Author : Casimiro Castillejo-Lopez; Udo Häckers grupp Utvecklingsbiologi i invertebrater; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chironomus; CENP-B box; mobile elements; reverse transcriptase; gene conversion; satellite; repetitive DNA; Telomere; centromere; Genetics; cytogenetics; Genetik; cytogenetik;

    Abstract : Repetitive DNA is quantitatively the main component of telomeres and centromeres, structures responsible for maintenance of the eukaryotic chromosome. The telomere is the specialized nucleoprotein complex that terminates linear chromosomes. READ MORE

  4. 2. MRI sequences for detection of acute pulmonary embolism

    Author : Roberto Vargas Paris; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : In recent years a range of imaging techniques have emerged to help diagnose patients with suspected acute Pulmonary Embolism (PE). This is particularly useful for those who are contraindicated (renal failure or allergies) to the contrast media that is needed to perform Computed Tomography Pulmonary Angiography (CTPA), which would be the usual diagnostic tool of choice. READ MORE

  5. 3. Organization of centromere associated DNA in Chironomus pallidivittatus

    Author : Hong He; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Genetics; Chironomus.; pericentric DNA; repetitive DNA; centromere; transposable element; cytogenetics; Genetik; cytogenetik;

    Abstract : Centromeres have not yet been functionally defined in higher eu- karyotes, largely due to the huge amounts of repeated DNA in these regions of most species and difficulties of delimiting centromeric from pericentric regions. Also the latter have large quantities of mostly noncoding DNA, expressed cytologically as pericentric heterochromatin. READ MORE

  6. 4. Streptococcal protein Rib and related proteins: a family of repetitive surface proteins that elicit protective immunity

    Author : Margaretha Stålhammar-Carlemalm; Institutionen för laboratoriemedicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; cross-protection; epithelial cell adhesion; protective immunity; vaccination; surface proteins; Group B streptococcus; Streptococcus pyogenes; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Abstract : ABSTRACT Streptococci constitute a heterogeneous group of Gram-positive bacteria, divided into different serological groups on the basis of antigenic differences in a cell wall-associated carbohydrate. This thesis describes related surface proteins expressed by bacteria in two of these groups, the group B streptococcus (GBS) and the group A streptococcus (GAS). READ MORE

  7. 5. Comparative studies of alkylating and N-heterocyclic compounds on different genetic endpoints with special emphasis on amplification of minisatellite sequences

    Author : Eva Agurell; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Several mutational events are involved in the multistage process of cancer. Genetic instability of tumor DNA is shown in a variety of genetic changes such as point mutations, chromosomal aberrations, aneuploidy, DNA amplification and somatic recombination. READ MORE