Human genome sequenced by handheld device

A pocket-sized DNA sequencing gadget has been used to produce a complete readout of the human genome and has filled in some of the known gaps in the code. The MinION device is just 10cm long and has been available to scientists since 2014, though it is usually used to process shorter sequences such as the genomes of bacteria and viruses. But recent improvements to preparation techniques and software mean it is now able to deal with more data.