Neco 2025 Biology Question 14
Practice objective / multiple choice question 14 from the 2025 Neco Biology examination.
Two closely related species of beetles differ by 12 % in the amino‑acid sequence of a conserved protein. The molecular clock for this protein is estimated at 1 % sequence divergence per million years. (a) Estimate the time (in million years) since the two species diverged. (b) If the species are found on opposite sides of a mountain range that arose 15 million years ago, which mode of speciation is most consistent with this information?
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About This Question
This is Neco 2025 Biology Question 14. It is one of the objective questions from the 2025 Neco Biology examination.
Difficulty level: Medium .
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