Spermatogenesis is the process of forming sperm cells by meiosis (in animals, by mitosis in plants) in specialized organs known as gonads (in males these are termed testes). After division the cells undergo differentiation to become sperm cells.
The Dracula of fiction lived in a place that was based on Bran Castle in Transylvania. Bram Stoker never visited Romania. He depicted the imaginary Dracula's castle based upon a description of Bran Castle that was available to him in turn-of-the-century Britain.
But its most famous occupant was Vlad âThe Impalerâ Tepes, a fearsome warrior who operated in the area and was imprisoned in the castle in the 15th century. Vlad was a member of the House of Draculesti, the name which gave rise to the famous vampire Count Dracula, the creation of the 19th-century writer Bram Stoker.