Developmental origins hypothesis

The idea is fetal programming. Fetal programming and its variants—such as the Barker hypothesis, the fetal or developmental origins hypothesis, the developmental origins of disease hypotheses, and some others—all refer to the same phenomenon An interaction of the environment with the fetus whose effects may not show up until years later and may or may not be transgenerational. Apart from this common thread, however, there are some significant differences in the emphasis of each hypothesis. 

A precise ordering of events in the evolution of the eukaryotic cell is not possible. It is difficult to exclude even a fully independent origin of one or each of the individual cell components with eventual amalgamation into an interdependent system. What I present is a hypothesis to explain how plasma membranes and other endomembrane components are renewed during cell division and maintained at other times by processes of membrane biogenesis, flow, and differentiation along clearly defined subcellular developmental... 

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