Cytoplasm . Cytoplasmic vesicle, secretory vesicle, acrosome . Cytoplasm, cytoskeleton, cilium basal body . Cell projection, cilium, flagellum . Nucleus . In caudal sperms localizes onto sperm head. Is also present on midpiece and principle piece of sperm tails. Acrosome and sperm tail localization is regulated by Y-chromosome. .
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