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Anonymous
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May 21, 2007, 8:54 am
what are rods and cones? 
what are rods and cones? 

   
   

Answers  (1)


sumesh kumar 		May 27, 2007,9:29 am
rods enables to see in dim light and night.rods contain a purple coloured photosensitive pigment called rhodopsin.
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<br>cones are sensitive to bright light only.cones are responsible the perception of colours.cones contain a violet coloured photosensitive pigment called rodopsin.