Lens Development: Fiber Elongation and Lens Orientation

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Science  13 Dec 1963:
Vol. 142, Issue 3598, pp. 1489-1490
DOI: 10.1126/science.142.3598.1489


When the lens of the 5-day chick embryo is surgically reversed so that its epithelium faces the neural retina the elongation of those lens cells which have already differentiated is arrested and the epithelial cells differentiate into a new set of lens fibers. This internal reorganization, together with a reversal in polarity at the lens equator, results in a complete reversal of the polarity of the-entire lens.

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