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Script: Umgodlana womthubi (yolk sac) unezitho zokubeletha ezibizwa ngama germ cells. EMVA KWEEMVEKE EZI-5 Amaseli la (germ cells) ayathutha aye kuncenye yezitho zokubeletha eduze neziso. | ||
All ages referenced to fertilization, not last menstrual period. |