The role of sexuality and/or gender in Dracula

Discuss the role of sexuality and/or gender in Dracula. What does the novel suggest about sexual behavior and/or views of women’s (or men's) roles in society in Victorian England? How do the female characters in the novel reinforce beliefs about "separate spheres" and how do they challenge them? You should include an appropriate quotation from Kathryn Hughes' article "Gender Roles in the 19th Century."