Taking DNA sequencing into the field
DEVICES for analysing DNA used to be big, clunky and not very good. Hundreds were required for the initial sequencing of the human genome, a project that started in the late 1990s and took over a decade to complete at a cost of at least $500m. Since then, sequencing a human genome has become a routine process; prices have fallen to below $1,000. Although the machines that do the job have got better and more compact, they still cost several hundred thousand dollars. Various groups are trying to make them smaller and cheaper. Читать дальше...