Oscar Hertwig , 1849-1922. "Biological problem of today: preformation
or epigenesis? The basis of a theory of organic development". W. Heinemann: London, 1896 .
Eva Jablonka and Marion J. Lamb. The Changing Concept ...
... the free encyclopedia (Redirected from preformation
) ... who elaborated both upon preformation
and epigenesis, two distinct theories of generation. ... The preformation
theory states that "knowledge is possible ...
... eMedicine Dictionary ... Epigenesis and preformation
by Jane Maienschein (Stanford Encyclopedia of ... for respiratory diseases. Epigenesis and preformation
are two persistent ways of describing and seeking ... of thought had been based on this question: the preformation
school maintained that the ... Definition of ...