Specificity and retinotectal projections of quarter-eye fragments in Xenopus laevis.


Three quarters of the eye anlage in Xenopus embryos of stage 33/34 were eliminated in three different sets of experiments. The remaining quadrant originated from the nasoventral part of the retina, from its ventral portion, or from the temporo-ventral area of the retina. All the fragments developed into small eyes of normal shape. The retinotectal… (More)


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