Waec Model Questions Vol1 2022 Biology Question 34
Practice objective / multiple choice question 34 from the 2022 Waec Model Questions Vol1 Biology examination.
A protein of 300 amino‑acid residues shows 15 differences when compared between Species X and Species Y. The average rate of amino‑acid substitution for this protein lineage is 1 substitution per 100 residues per million years in each lineage. Assuming a strict molecular clock, estimate the time (in million years) since Species X and Species Y diverged from their common ancestor.
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About This Question
This is Waec Model Questions Vol1 2022 Biology Question 34. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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