December 17, 2009

Question: What did they say?

84.  They stated that they started with a 9 old sheep embryo, made of a hundred or so cells, which they removed from a pregnant ewe.

85.  The team allowed these cells to divide repeatedly in culture dishes.

86.  In less than a week, thousands of the identical cells filled several dishes.

87.  Separately, the researchers gave hormone shots to female sheep to induce the release of eggs from their ovaries, much as fertility specialists induce ovulation in women trying to become pregnant.

88.  This team created a healthy lamb from a normal adult cell taken from the udder of an ewe.

89.  While it took Scottish scientists almost 300 embryos to produce one healthy sheep named Dolly, which some of the offspring were deformed and died.

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