What determines your blood type?

Does exercising give you headaches? Why do my hands get swollen? Do onions absorb germs?
21 August 2015
Presented by Chris Smith

BLOOD-CELLS

Computer generated image of Red blood cells travelling in a blood vessel

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Is DNA set to replace the hard drive? Chris told us about a story where DNA could be used to store digital information and preserve essential knowledge for thousands of years. We then opened the lines and invited listeners to call in with their science related questions.

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