Final answer:
The term 'autosymbiosis' is not recognized in the scientific community as a theory explaining the origin of cell organelles in eukaryotes. Recognized theories include endosymbiosis, membrane infolding, and gene duplication.
Step-by-step explanation:
The origins of cell organelles in eukaryotes include several hypotheses, but one listed option is not a recognized theory for the development of organelles. The possible origins of cell organelles in eukaryotes, excluding incorrect options, are as follows:
- Endosymbiosis: This widely accepted theory explains that organelles like mitochondria and chloroplasts originated from the engulfing of one cell by another, forming a symbiotic relationship where both benefit.
- Membrane infolding: The infoldings of the plasma membrane of ancestral cells are proposed to have given rise to endomembranes, including the nucleus and endoplasmic reticulum.
- Gene duplication: This process can contribute to the evolution of genetic material necessary for the development of various cellular structures.
The term 'autosymbiosis' is not a recognized scientific term regarding the origin of eukaryotic cell organelles and thus is the correct answer to the question 'All of the following are possible origins of cell organelles in eukaryotes except?'