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29th Apr 2007

Migrating Genes, Surnames and Y Chromosomes


Kat Arney

Dave Ansell

This week we're exploring how populations come by their genes including the surprise finding of African DNA in a remote village in Yorkshire. Oxford University's Bruce Winney explains how studying rural populations in Britain is helping to uncover genes linked to different diseases, and Turi King, from Leicester University, discusses what your Y chromosome says about your surname. Plus we'll be hearing how Cambridge scientist Mike Majerus is putting evolution to the test with the help of the peppered moth, and in kitchen science, more jam tomorrow as Ben and Dave show you a trick with a rolling jar.

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Protein for plant “petrol”

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Fighting both dandruff and epilepsy

It may not seem like an obvious treatment for epilepsy, but results from a team at  Johns Hopkins Medical Institute have found that a chemical in anti-dandruff shampoo might be useful for treating the illness.  Epilepsy occurs when nerve pathways in the brain “short-circuit”, and nerves st...

New planet discovered

In the constellation Libra, 20.5 light years away there is a star we call Gliese 581. This is a small rather dim star which astronomers have been studying for several years, and had found two large planets circling it. One at 15 times the mass of the earth orbiting every 5.4 days and another 8 times...

Furry Displays

You may remember at school someone being charged up by a Van de Graaf generator, and their hair standing on end because all the hairs now repel each other. Engineers at Phillips may have come up with a way of using this principle to make a display out of fabric. The idea is to make a hairy fabric w...


Kitchen Science

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...or download as MP3 [1] [2]

Racing Jam Jars

Race Jam Jars down a slope and find out that all things don't allways fall at the same speed.


Interviews

The Evolution of the Peppered Moth

Mike Majerus tells us about the peppered moth, cites as an example of evolution by natural selection in action.

The People of the British Isles

Bruce Winney talks about the genes which make up the British people

Surnames, Yorkshiremen and Y-Chromosomes

Turi King talks about how she found African ancestry in Yorkshiremen, and about how your Y-chromosome type can predict your surname

Science Update: Consumerism

Chelsea and Bob try to answer the age old question 'Why do we buy what we buy?' Does celebrity endorsement work? How much choice is too much?


Questions

I know traditionally its thought that most of the sequences in our DNA is dead space (Junk DNA), but do they have a function?


I have observed here in Canada that even in the middle of winter you'll see ducks in the lake along the shores swimming by and feeding. What makes them able to swim in very cold water and not freeze their feet that are not covered with feathers or suffer from hypothermia?


Why, when geese fly south for winter, do they fly in a v formation?





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