See the original article here: Morphic Resonance and Morphic Fields – an Introduction

In the hypothesis of formative causation, discussed in detail in my books A New Science of Life and The Over the course of fifteen years of research on plant development, I came to the conclusion that for understanding the development of plants, their morphogenesis, genes and gene products are not enough. Morphogenesis also depends on organizing fields. The same arguments apply to the development of animals. Since the 1920s many developmental biologists have proposed that biological organization depends on fields, variously called biological fields, or developmental fields, or positional fields, or morphogenetic fields.

sheldrake.org