DNA Sequenced In Space For The First Time!

DNA sequenced in space 30 August 2016
From the section Science & Environment

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Nasa astronaut Kate Rubins carried out the sequencing at the weekend

DNA has been successfully sequenced in space for the first time.
Nasa astronaut Kate Rubins carried out the test on the International
Space Station (ISS) at the weekend.She was using a compact DNA
sequencing device called Minion, which was developed in the UK.
The device, which was sent up to the space station in July, could
help astronauts diagnose illness in space and allow them to identify
disease-causing microbes on the ISS.DNA sequencing is the process
used to determine the order of the four chemical building blocks that
make up the genetic information from a given living organism.

While Dr Rubins carried out her work on the orbiting outpost, researchers
were simultaneously sequencing identical test samples on the ground.
The experiment was set up to attempt to make spaceflight conditions,
particularly microgravity, the only variables that could account for
differences in the results.Using the Minion in a weightless environment
introduces several challenges including the formation of air bubbles in
fluid used in the test.

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The sequencer is small compared to the microwave-sized devices used on Earth

Bubbles rise to the top of a liquid solution and can be removed by centrifuge.
But in space, bubbles are less predictable.Sarah Castro-Wallace, project
manager for the experiment, said: "Onboard sequencing makes it possible
for the crew to know what is in their environment at any time."That allows
us on the ground to take appropriate action - do we need to clean this up
right away, or will taking antibiotics help or not?

"We can resupply the station with disinfectants and antibiotics now, but once
crews move beyond the station's low Earth orbit, we need to know when to
save those precious resources and when to use them."

http://www.bbc.co.uk/news/science-environment-37223073