growth of germinal cells at different angular positions within the posterior portion of the embryonic frog eye has been examined by orthotopically transplanting small groups of germinal cells from pigmented ( stage 30-38 ) donor embryos into albino ( stage 28-36 ) hosts and then serially photographing the polyclonal-cell progeny domain ( typically a black sector ) in the pigmented retinal epithelium of the living , growing eye .
C0007595
growth of
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cell