501 - 510 of 635 results

  • Genetically modified plants

    Genetically modified plants: questions and answers

  • Genetic technologies

    What can and should genetic technologies be used for?

    • Journal - Proceedings of the Royal Society B: Biological Sciences

    A new cytogenetic mechanism for bacterial endosymbiont-induced parthenogenesis in Hymenoptera

    Aug 19, 2008 - Vertically transmitted endosymbiotic bacteria, such as Wolbachia, Cardinium and Rickettsia, modify host reproduction in several ways to facilitate their own spread. One such modification results in parthenogenesis induction, where males, which are

    Tetsuya Adachi-Hagimori, Kazuki Miura, Richard Stouthamer

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

    DNA methylation and epigenetic inheritance

    Jan 30, 1990 - Classical genetics has revealed the mechanisms for the transmission of genes from generation to generation, but the strategy of the genes in unfolding the developmental programme remains obscure. Epigenetics comprises the study of the mechanisms

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

    The inheritance of germline-specific epigenetic modifications during development

    Feb 27, 1993 - Parental genomes in mammals are programmed in the germline with heritable epigenetic modifications that exert control on the expression of specific (imprinted) genes. DNA methylation is one form of epigenetic modification which shows marked

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

    Evolution and spermatogenesis

    May 27, 2010 - Sexual reproduction depends on the production of haploid gametes, and their fusion to form diploid zygotes. Here, we discuss sperm production and function in a molecular and functional evolutionary context, drawing predominantly from studies in

    Helen White-Cooper, Nina Bausek

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

    Solutions to Peto's paradox revealed by mathematical modelling and cross-species cancer gene analysis

    Jul 19, 2015 - Whales have 1000-fold more cells than humans and mice have 1000-fold fewer; however, cancer risk across species does not increase with the number of somatic cells and the lifespan of the organism. This observation is known as Peto's paradox. How

    Aleah F. Caulin, Trevor A. Graham, Li-San Wang, Carlo C. Maley

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

    Structure and expression of human IFN-α genes

    Sep 24, 1982 - Copy DNA (cDNA) was prepared from induced leucocyte poly (A) RNA and cloned in Escherichia coli. IFN-α cDNA clones were isolated by subculture cloning with the use of a translation hybridization assay. Definitive identification of the clones was

    Journal - Proceedings of the Royal Society B: Biological Sciences

    Mitochondria as integrators of information in an early-evolving animal: insights from a triterpenoid metabolite

    Mar 7, 2005 - Mitochondria have the capacity to integrate environmental signals and, in animals with active stem cell populations, trigger responses in terms of growth and growth form. Colonial hydroids, which consist of feeding polyps connected by tube-like

    Neil W Blackstone, Molly M Kelly, Valsala Haridas, Jordan U Gutterman

    Journal - Journal of The Royal Society Interface

    Modelling epidermis homoeostasis and psoriasis pathogenesis

    Feb 6, 2015 - We present a computational model to study the spatio-temporal dynamics of epidermis homoeostasis under normal and pathological conditions. The model consists of a population kinetics model of the central transition pathway of keratinocyte

    Hong Zhang, Wenhong Hou, Laurence Henrot, Sylvianne Schnebert, Marc Dumas, Catherine Heusèle, Jin Yang

    Journal - Proceedings of the Royal Society of London

    III. On the existence of amorphous starch in a new tuberaceous fungus

    Jan 1, 1859 - Amorphous starch (including under that term all starch not in the form of the ordinary starch-granule) is rare in the vegetable world. Until the present year Schleiden was the only botanist by whom it had been noticed, and his observations have been

    Journal - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character

    The origin of erythrocytes in herring (Clupea harengus)

    Feb 1, 1932 - The origin of erythrocytes in fishes presents an almost unique problem on account of the different methods of their formation and the varying stages of development at which they are found in the circulation. The general opinion would seem to