Conserved Core Metabolic Pathways
The Krebs cycle is often cited as an example of a core metabolic pathway conserved across the domains of life. Which of the following findings would be LEAST consistent with this conclusion?
A
The cycle uses fundamentally different carbon compounds in each domain
B
The cycle uses identical electron carriers in all domains
C
The cycle produces the same number of ATP equivalents across domains
D
Different regulatory mechanisms control the cycle’s rate in each domain
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