Which of the following is NOT a good scenario for a molecular clock?

Question

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The scenario in which the gene used is nonessential is not a good choice for a molecular clock because it may not accurately reflect the evolutionary history of the species being compared. Nonessential genes may be subject to different selective pressures and evolutionary rates than essential genes, leading to inaccurate estimates of divergence times. The other scenarios listed (A, B, and C) are all important characteristics for a reliable molecular clock.

Which of the Following Is NOT a Good Scenario for a Molecular