Waec Model Questions Vol1 2024 Biology Question 4
Practice objective / multiple choice question 4 from the 2024 Waec Model Questions Vol1 Biology examination.
A molecular‑clock study of three related species gives the following numbers of nucleotide differences: Species A-B: 18 differences; Species B-C: 24 differences; Species A-C: 30 differences. The mutation rate is 3 substitutions per million years per lineage. Assuming a constant molecular clock, estimate the time (in million years) since species A and B diverged from their common ancestor.
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This is Waec Model Questions Vol1 2024 Biology Question 4. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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