Two pioneers of stem cell research have shared the
Nobel Prize for medicine or physiology
John Gurdon from the UK and Shinya Yamanaka from
Japan were awarded the prize for changing adult cells into stem cells, which
can become any other type of cell in the body.
Prof Gurdon used a gut sample to clone frogs and Prof
Yamanaka altered genes to reprogramme cells.When a sperm fertilises an egg there is just one type
of cell. It...
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