Heredity, Natural Selection, and Evolution

Early Studies in Heredity

What is the homunculus theory?

The Fhomunculus theory had its roots in the late seventeenth century, when illustrations depicted sperm containing a miniaturized adult—a preformed human called a homunculus. It was thought at that time that the sperm (and its homunculus) contained all of the traits for building a baby and that the egg and womb served simply as incubators.


This is a web preview of the "The Handy Biology Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App