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An electron micrograph of a section from the testis of a rat from group II showing spermatid cell (SD) with elongated nucleus (N) covered by acrosomal cap (crossed arrow) and vacuolated (V) golgi apparatus (arrow). The cytoplasm contains lysosomes (LY). The head of some sperms shows abnormally shaped nucleus (S1) and other sperms show degenerated heads (S2) (TEM × 3000).
