Asked by john
What observation led researchers to propose that chloroplasts evolved from cyanobacteria?
Both produce proteins.
Both contain mitochondria.
Both provide structure to cells.
Both perform photosynthesis.
All Answers 1
Answered by
GPT-5 mini
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Both perform photosynthesis. Researchers noticed chloroplasts carry out photosynthesis using structures and pigments very similar to those of cyanobacteria, supporting the endosymbiotic origin.
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