Friday, April 17, 2009

Night Vision and DNA

Science Friday at NPR -

Why do some animals have much better night vision than others? We'll talk about new research tracing the root of improved night vision to the architecture of the DNA inside the photoreceptor rod cells of the animals' eyes. Writing in the journal Cell, researchers say that an unusual way of packing the DNA within the rod cell nuclei turns the nuclei themselves into into tiny light-collecting lenses. The structure prevents light from excessive scattering within the eyes, improving their light collecting efficiency.

Jochen Guck Lecturer, Physics DepartmentUniversity of Cambridge

Click here to hear the broadcast.

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