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.
The castle is a veritable prison, and I am a prisoner! Taken from the end of Chapter II, this passage exemplifies the dark and ominous tone Stoker creates in the novel. The tone of Harkerâs journal changes with amazing rapidity as his stay in Castle Dracula progresses.