GENETIC BOUNDARIES: 'A pioneering study into [Britain's] genetic heritage ... shows that up to 40 per cent of [British] DNA may be from Germanic ancestors, and not the Vikings, thanks to the Anglo-Saxon migrations in 450-600AD. The project, carried out by Oxford University, is particularly interesting because it would seem that this genetic make-up bears out those old traditions and clichés about how [people] relate to each other. So the age-old rivalries between Devon and Cornwall – take…
Confocal micrograph showing the expression of different fluorescent proteins in the stem of a thale cress seedling (Arabidopsis thaliana). Arabidopsis was the first plant to have its entire genome sequenced and is an important model for studying plant biology. The middle of the image shows a region of high cell proliferation, which drives the growth and branching of the seedling.
An international team of scientists has sequenced the complete genome of the woolly mammoth. A US team is already attempting to study the animals' characteristics by inserting mammoth genes into elephant stem cells.
Campylobacter bacteria are the number-one cause of food-related gastrointestinal illness in the United States. ARS scientists are currently sequencing multiple Campylobacter genomes. This scanning electron microscope image shows the characteristic spiral, or corkscrew, shape of C. jejuni cells and related structures. Photo by De Wood; digital colorization by Chris Pooley.