Sökning: "developmental rate"

Visar resultat 1 - 5 av 110 avhandlingar innehållade orden developmental rate.

  1. 1. Plant ecological studies related to restoration of a degraded ecosystem in central Tanzania

    Författare :Shadrack Eliapenda; Ingvar Backéus; Karin Bengtsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Conservation; land degradation; population growth rate; population structure; regeneration; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; Ecological Botany; Ekologisk botanik;

    Sammanfattning : Kondoa Irangi area is among the most degraded ecosystems in Central Tanzania as a result of heavygrazing, fire, collection of fuelwood and improper cultivation practices. The restoration process of thisdegraded ecosystem through natural regeneration is slowed by the semi-arid climate of the area combinedwith poor soil nutrient status. LÄS MER

  3. 2. Investigation of radiation-induced genetic and epigeneticeffects using cultured cells and Drosophila as experimental models: with focus on dose rate

    Författare :Traimate Sangsuwan; Siamak Haghdoost; Ulrich Theopold; Stenerlöw Bo; David Berger; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gamma radiation; low-dose-rate; MTH1; MYH; mutant frequency; Drosophila milanogaster; embryogenesis; mutation; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : .... LÄS MER

  4. 3. Rates and Patterns of Mutation in Microsatellite DNA

    Författare :Jesper Brohede; Christian Schlötterer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; evolutionär genetik; evolutionär genetik;

    Sammanfattning : Sequence comparisons of orthologous microsatellite loci in cattle and sheep revealed that the substitution rate in microsatellite flanking sequences does not differ from the rate in presumably neutrally evolving intron sequences. This suggests that microsatellites are generally located in regions that are not subjected to selection. LÄS MER

  5. 4. Genetic Disequilibria and the Interpretation of Population Genetic Structure in Daphnia

    Författare :Lars M. Berg; Xavier Vekemans; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; breeding system; linkage disequilibrium; dispersal; genetic structure; Daphnia pulex; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; naturvårdsbiologi; Conservation Biology;

    Sammanfattning : Understanding the processes that shape the spatial distribution of genetic variation within species is central to the evolutionary study of diversification and demography. Neutral genetic variation reflects past demographic events as well as current demographic characteristics of populations, and the correct interpretation of genetic data requires that the relative impact of these forces can be identified. LÄS MER

  7. 5. The Mechanism of translation termination in Escherichia coli

    Författare :David V. Freistroffer; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : Protein synthesis in E. coli is terminated by the release factors (RFs) and the ribosome is prepared for another round of protein synthesis by ribosome recycling factor (RRF), elongation factor G (EF-G) and initiation factor (IF3). LÄS MER