[The translation symmetry in cell mosaics of amphibian embryonic ectoderm as a manifestation of their modular structure].

A theoretical proposition that the cell mosaics possess translation symmetry has been experimentally confirmed by scanning electron microscopy of the common frog embryonic ectoderm. This symmetry is a manifestation of the tissues modular structure and it provides new data for quantitative estimation of composition and structure of tissue morphofunctional element as well as for diagnostics and prediction of tissue development.