Question

which of the statements is evidence supporting the hypothesis that eukaryotic chloroplasts originated from cyanobacteria? chloroplasts and cyanobacteria have similar dna sequences for shared genes. chloroplasts and cyanobacteria both have cell walls. chloroplasts can leave the cell and function freely on their own. chloroplasts and cyanobacteria have the same number of genes.

Explanation:

The endosymbiotic theory suggests that chloroplasts originated from cyanobacteria. Similar DNA sequences for shared genes between chloroplasts and cyanobacteria are strong molecular - level evidence for this evolutionary origin. Chloroplasts are organelles and cannot leave the cell and function freely. Having cell walls or the same number of genes is not the most compelling evidence for the endosymbiotic origin.

Answer:

Chloroplasts and cyanobacteria have similar DNA sequences for shared genes.