Xenopus tadpole after manipulation of its membrane voltage.
genetic manipulation of membrane voltage in Xenopus (frog) embryos,
biologists at Tufts University's School of Arts and Sciences were able
to cause tadpoles to grow eyes outside of the head area. The
researchers achieved most surprising results when they manipulated
membrane voltage of cells in the tadpole's back and tail, well outside
of where the eyes could normally form.Read more.