Observatory – In Fruit Flies, Gender Is Determined at the Cellular Level – NYTimes.com

Posted on July 27, 2010 by

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Dr. Baker and his colleagues have made a surprising discovery: not every cell in the fly is marked as male or female.

In a sense, some cells know their sex while others do not. Until now it was believed that every cell in a fruit fly had the appropriate male or female version of doublesex switched on.

The research “generates real thinking of what sexuality means,” said Dr. Baker, a scientist at Janelia Farm, a division of the Howard Hughes Medical Institute. “Both males and females were a mixture of some cells that knew their sex and some that did not.”

via Observatory – In Fruit Flies, Gender Is Determined at the Cellular Level – NYTimes.com.

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Posted in: Biology