31. The back of the retina has a rich layer of photoreceptors called opsins , he said. 32. Early tetrapods inherited a set of five rod and cone opsins known as the vertebrate opsins. 33. Early tetrapods inherited a set of five rod and cone opsins known as the vertebrate opsins . 34. The light sensitive opsins are borne on a hairy layer, to maximise the surface area. 35. This suggests that gustducin can interact with opsin and opsin-like G-coupled receptors. 36. This suggests that gustducin can interact with opsin and opsin -like G-coupled receptors. 37. The main target genes of PNR are rhodopsin and several opsins which are essential for sight. 38. He is known for first isolating and characterizing the opsin genes contributing to human color vision. 39. This led to the creation of the modern human long wavelength sensitive, or red opsin . 40. The retina has 10 layers, Sancar said, with opsins in the back-most region.
