The genetic code appeared on Earth with the first cells. The codes of cultural
evolution arrived almost 4 billion years later. These are the only codes that are
recognised by modern biology. In this book, however, Marcello Barbieri explains
that there are many more organic codes in nature, and their appearance not only
took place throughout the history of life but marked the major steps of that history.
evolution arrived almost 4 billion years later. These are the only codes that are
recognised by modern biology. In this book, however, Marcello Barbieri explains
that there are many more organic codes in nature, and their appearance not only
took place throughout the history of life but marked the major steps of that history.
A code establishes a correspondence between two independent “worlds”, and
the codemaker is a third party between those “worlds”. Therefore the cell can be
thought of as a trinity of genotype, phenotype and ribotype. The ancestral ribotypes
were the agents which gave rise to the first cells.
The book goes on to explain how organic codes and organic memories can be
used to shed new light on the problems biologists encounter in cell signalling,
epigenesis and embryonic development. A mathematical model is presented to
show how embryos can increase their own complexity by the use of a code and a
memory.
This fascinating book will be of interest to all biologists and anyone with an interest
in the origins and the evolution of life on Earth.
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