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Meiosis and mitosis in unfertilized eggs of an arrhenotokous strain of N. formosa: (a) first metaphase, (b) first anaphase, (c) polar body (out of focus), divided first polar body and female pronucleus, (d,e) second polar body, divided first polar body and female pronucleus, (f) haploid telophase of first somatic mitosis and (g(i)(ii)) haploid telophase in embryo. Arrow head indicates polar nuclei. Scale bar represents 10 μm.
