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 concept integrates genetics, ecology and molecular evidence, frequently tested in NEET, GATE and CSIR-NET, highlighting links between genotype, phenotype and environment.
Ref: Alberts et al., Molecular Biology of the Cell, 6th ed., Chapter 1: Origin of Life.