Neco 2023 Biology Question 37
Practice objective / multiple choice question 37 from the 2023 Neco Biology examination.
Researchers compare mitochondrial DNA sequences of two populations that are thought to have diverged \(2\) million years ago. The mutation rate for the examined mitochondrial region is \(1.2 \times 10^{-8}\) substitutions per site per year, and the sequence length is \(1500\) bp. The average observed number of nucleotide differences between the two populations is \(18\). Estimate the time since divergence based on the molecular data and state whether it supports the \(2\) million‑year claim.
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About This Question
This is Neco 2023 Biology Question 37. It is one of the objective questions from the 2023 Neco Biology examination.
Difficulty level: Medium .
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