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.
No list of the worldâs biggest and most expensive houses would be complete without a genuine castle. This beautiful home set in the countryside of Romania is widely believed to have been the home of Count Dracula, and the castle is home to a museum dedicated to the famous former resident.