Jan 18, 2009

From gene to see the evolution - from the fruit fly's compound eye to talk about evolution and development of

Eyes to the window of our soul is the perception of animals an important channel for the external environment, with a very important function. The evolution of eyes has been the evolution of an important controversy, opponents argue that it is hard to imagine such a complex organ sophisticated selection through the mechanism.Biologists to compare different animal eyes, analyze the pattern of development, optical structure, found to have many differences, so that in the course of evolution, many different animals have evolved independently in this visual organ eyes. Walter Gehring Switzerland in 1995 discovered a decision Drosophila compound eye development of master genes, and deduced the most eye development upstream regulatory mechanism may have evolved only once, that is to say all kinds of visual organs are derived from the same ancestors. The speech will be about the development of Drosophila compound eye to discuss the evolution of eyes.

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