391 - 400 of 635 results

  • Genetically modified plants

    Genetically modified plants: questions and answers

  • Genetic technologies

    What can and should genetic technologies be used for?

  • Journal - Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences

    The influence of the corticothalamic projection on responses in thalamus and cortex

    Dec 29, 2002 - We review results on the in vivo properties of neurons in the dorsal lateral geniculate nucleus (dLGN) that receives its afferent input from the retina and projects to the visual cortex. In addition, the dLGN receives input from the brain stem and

    Journal - Interface Focus

    Biological action in Read–Write genome evolution

    Oct 6, 2017 - Many of the most important evolutionary variations that generated phenotypic adaptations and originated novel taxa resulted from complex cellular activities affecting genome content and expression. These activities included (i) the symbiogenetic

    Journal - Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences

    Structural and functional specificity of FGF receptors

    Jun 29, 1993 - Fibroblast growth factors (FGFs) represent a group of polypeptide mitogens eliciting a wide variety of responses depending on the target cell type. The knowledge of the cell surface receptors mediating the effects of FGFs has recently expanded

    Journal - Philosophical Transactions of the Royal Society B: Biological Sciences

    Cell transplantation for diabetes

    Aug 16, 2005 - For 30 years there has been experimental work aimed at transplanting islets for the treatment of diabetes with a view to curing the disease and preventing the secondary complications. Many technical difficulties were experienced, first in isolating

    Journal - Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences

    Potassium cycling in Helianthus: ions of the xylem sap and secondary vessel formation

    Jun 29, 1995 - Recent work has shown that dyes travelling in the transpiration stream in dicotyledon leaves become concentrated in the vessels of the finest veins where water enters the symplast. Such concentrations are called sumps. Using X-ray microanalysis of

    Journal - Philosophical Transactions of the Royal Society of London. B, Biological Sciences

    Chromosome replication in cell-free systems from Xenopus eggs

    Dec 15, 1987 - Cell-free systems from eggs of the frog Xenopus laevis are able to perform most of the acts of eukaryotic chromosome replication in vitro. This now includes the crucial regulatory step of initiation, which had only been achieved for viral systems

    Journal - Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences

    Pattern formation in the Arabidopsis embryo: a genetic perspective

    Oct 30, 1995 - During embryogenesis, a single cell gives rise to different cell types, tissues and organs which are arranged in a biologically meaningful context, or pattern. The resulting basic body organization of higher plants, which is expressed in the seedling