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Question Completion Status: Moving to the next question prevents changes to this answer ans estion 5 Which of the following provide the best phylogenetic evidence for Lynn Margulis Serial Endosymbiosis Theory? Chloroplasts form a sister group to Cyanobacteria and mitochondria form a sister group to Proteobacteria Cyanobacteria and Proteobacteria share the same most recent common ancestor Bacteria are the single ancestral group that gave rise to both types of organelles Organelles (mitochondria and chloroplasts) are the ancestral precursors to modern bacterial lineages. Mitochondria form a sister group to chloroplasts Moving to the next question prevents changes to this answer.

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Option 1 is the correct answer.

Chloroplast form a sister group to Cyanobacteria and Mitochondria form a sister group to Proteobacteria. Genome comparisons show close relationship between chloroplasts and unicellular cyanobacteria; and Mitochondria and proteobacteria. This provides the best phylogenetic evidence for Lynn Margulis' Serial Endosymbiosis theory.

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