Sökning: "Homologous"

Visar resultat 1 - 5 av 365 avhandlingar innehållade ordet Homologous.

1. 1. Bacterial DNA repair and molecular search

   Författare :Arvid H. Gynnå; Johan Elf; Stephen Kowalczykowski; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; DNA repair; DNA damage; homologous recombination; homologous repair; recombination; RecA; I-SceI; Biology with specialization in Molecular Biotechnology; Biologi med inriktning mot molekylär bioteknik;

   Sammanfattning : Surveillance and repair of DNA damage is necessary in all kinds of life. Different types of DNA damage require different repair mechanisms, but these mechanisms are often similar in all domains of life. The most serious type of damage, double stranded DNA breaks, are for example repaired in conceptually similar ways in both bacteria and eukaryotes. LÄS MER

3. 2. Interplay between Transcription and Homologous Recombination in the Presence of DNA Damage

   Författare :Ivaylo Stoimenov; Thomas Helleday; Niklas Schultz; Natalia Issaeva; Thierry Nouspikel; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; homologous recombination; transcription; DRB; UVC; 6-thioguanine; mammalian cells; BRCA1; BRCA2; PARP inhibitors; XP-V; Molecular biology; Molekylärbiologi; molekylärgenetik; Molecular Genetics;

   Sammanfattning : The biochemical processes of DNA repair, replication and recombination compete for the same substrate, the DNA molecule. This competition is natural, as each process requires the same template. In order to resolve possible conflicts between these processes, when they take place on a particular stretch of DNA, certain crosstalk is expected. LÄS MER

4. 3. The Evolution of Sexually Homologous Ornaments : Selection via Male Mate Choice Coinciding with Male-Male Competition in a Neotropical Mosquito

   Författare :Sandra South; Göran Arnqvist; Russell Bonduriansky; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sexual selection; Sabethes cyaneus; Diptera; Culicidae; mosquito; mutual ornamentation; sexual selection; mutual mate choice; male mate choice; female ornament; ecology; animal behaviour; Ethology and behavioural ecology; Etologi och beteendeekologi; Animal Ecology; Zooekologi;

   Sammanfattning : The evolution of elaborate male ornaments via sexual selection is well-understood while the selective pressures acting on female ornaments remains unresolved. Female ornaments in species with strong sexual selection on the male homologue of the ornament were originally thought to result from an intersexual genetic correlation. LÄS MER

5. 4. Homologous recombination at replication forks in mammalian cells

   Författare :Cecilia Lundin; Thomas Helleday; Klaus Erixon; Keith W. Caldecott; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Genetics; Genetik;

   Sammanfattning : Accumulating evidence indicates that homologous recombination plays an important role in mammalian cells, primarily in the reactivation of stalled replication forks. During a normal round of replication, stalling of the replication fork occurs frequently when a nick or a lesion, which cannot be by-passed, is encountered. LÄS MER

7. 5. Studies on homologous inhibition in the chick embryo

   Författare :Pierre M. Lenicque; Stockholms högskola; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER