is the gene
s development of the eye
. Its symbol is ey
, its cytological map
position is 102C, and the FlyBase ID
(whatever that is) is FBgn0005558.
When eyeless is turned on in a bit of fruit fly other than the usual front-of-its-head region, it grows eyes there: wings, legs, anywhere. The eyes are morphologically normal, with fully differentiated ommatidia and photoreceptors.
Homologous genes are found right across the metazoa.
Richard Dawkins says it's a damn silly idea to name a gene after the opposite of its actual function.
Aldous Huxley wrote a novel Eyeless in Gaza in 1936, which is itself a Biblical quotation.