What did Margulis propose about cell nuclei evolution?
Symbiotic mergers of bacteria
Spontaneous generation
Divine intervention
Chemical reactions
Answer
Symbiotic mergers of bacteria: Margulis proposed that cell nuclei evolved through the symbiotic mergers of bacteria. She suggested that a primitive eukaryotic cell engulfed a bacterium that became the nucleus, providing the cell with the ability to control gene expression and cell division. This theory is supported by the presence of bacterial-like structures within the nuclei of eukaryotic cells, such as ribosomes and circular DNA.
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