Inductive role of the nerve cord in regeneration of isolated postpharyngeal body sections of Dugesia dorotocephala.


Lateral cordless fragments isolated from the postpharyngeal section of Dugesia dorotocephala formed a large normal head at a 90" angle to the original antero-posterior polarity; postcerebrally, only a hump of undifferentiated tissue developed. This "head-hump'' pattern, and also other types observed in previous studies of lateral fragments, were attributed… (More)


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