APFIVE Phylogenetic Evidence For Endosymbiosis
A phylogenetic analysis of enzymes from the pentose phosphate pathway is conducted on various species. Which of the following findings would best support the endosymbiotic theory and the principle of conserved core metabolic pathways?
A
Mitochondrial enzymes more closely resemble bacterial than eukaryotic cytosolic enzymes
B
Enzymes in all domains have identical sequences with no variations
C
Eukaryotic enzymes show no relationship to prokaryotic enzymes
D
Enzymes in all domains show no sequence similarity despite identical function
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