Pangenesis

Ancient Greeks had two major theories of matter. These were the Atomic theory of matter and the theory of pangenesis.

The word "gene" stems from the Greek word "genesis", which means "birth".

Charles Darwin's 1868 theory of Pangenesis considered inherited traits that are passed down along the bloodline. In 1903 Wilhelm Johannsen first used the term "gene" in opposition to Charles Darwin's Pangenesis theory. This was eventually published in a book in 1909 called "Elemente der exakten Erblichkeitslehre".

Gregor Mendel's theory was called Pangenesis. And what it actually states is sort of confusing. But a helpful website that you can use is this: http://anthro.palomar.edu/mendel/mendel_1.htm It helped me and hopfully it will help you.