Neco Model Questions Vol1 2025 Biology Question 7
Practice objective / multiple choice question 7 from the 2025 Neco Model Questions Vol1 Biology examination.
Two species have mitochondrial DNA sequences that differ at 12 % of nucleotide sites (observed proportion of differences \(p = 0.12\)). Assuming a Jukes‑Cantor correction, the corrected genetic distance \(D\) is given by \(D = -\frac{3}{4}\ln\!\left(1-\frac{4}{3}p\right)\). If the average substitution rate is \( \mu = 2 \times 10^{-8}\) substitutions per site per year, estimate the divergence time (in million years) between the species.
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This is Neco Model Questions Vol1 2025 Biology Question 7. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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