Genes & Cells

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stretchy nerves in a whale

WIDE OPEN  Fin whales and others like them have stretchy nerves (yellow) in their mouths and tongues that help the whales open their mouths wide to swallow a lot of prey.

micrograph of mouse's optic nerve

NERVE PROTECTORS  The glowing cells in this micrograph of a mouse’s optic nerve help shield electrical signals passing between eyes and brain. The Brainbow technique allows scientists to visualize how the cells work together.

illustration of gene therapy in retina

NO GAIN  Patients with an inherited form of blindness experienced temporary gains in vision after receiving gene therapy. But the retina of one person shows that nearly six years after the treatment, vision cells died in the treated area (outlined upper left corner; cooler colors signify cell death) and in the rest of the retina. 

Genes & Cells

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