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Ultrastructure of the egg cell (a), zygote (b) and somatic cell (c) nuclei. Bar 2 μm. Immunogold localization of the total RNA Pol II pool (4H8 antibodies) in the egg cell (d), zygote (e) and somatic cell (f) of H. orientalis. Bar 200 nm. C cytoplasm, ch chromatin, N nucleus, nu nucleolus
