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.
1 Frankenstein Castle: Darmstadt, Germany is home to the setting for Mary Shelleyâs Gothic horror novel, Frankenstein. 2  This castle was the 18th century home of Lord Konrad Dippel Von Frankenstein. 3  There are many theories about Dippel, including one that he sold his soul for eternal life. However, Windsor Castle is probably the most well known castle in the world, as â together with Buckingham Palace in London and Holyrood Palace in Edinburgh â it is one of the official residences of Englandâs Queen and the largest occupied castle in the world.