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#protobionts

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Chemogeny & biogeny

Main drawback of protobionts was inability to

Protobionts such as coacervates and microspheres demonstrated compartmentalization, growth and some catalytic activity but failed to store and transmit information faithfully. True life requires template-based reproduction allowing heredity and evolution. Without nucleic acids or accurate replication, protobionts could not sustain Darwinian selection. Later RNA world hypothesis addressed information storage. Recognizing this limitation explains transition to true cells incorporating RNA or DNA. Hence inability to Reproduce represents critical deficiency preventing full cellular status. This co

Ref: Alberts et al., Molecular Biology of the Cell, 6th ed., Chapter 1: Origin of Life.

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Chemogeny & biogeny

Protobionts are also called

Protobionts represent clusters of organic macromolecules surrounded by primitive membrane maintaining internal environment distinct from external medium. They exhibit simple properties like growth, limited metabolism and aggregation but lack accurate self-replication. Oparin called them coacervates, Fox called proteinoid microspheres, collectively termed protocells as precursors to true cells. Understanding terminology clarifies transition from chemistry to biology. Thus synonym Protocells emphasizes cellular-like organization without full genetic machinery. This concept integrates genetics, e

Ref: Alberts et al., Molecular Biology of the Cell, 6th ed., Chapter 1: Origin of Life.

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