Neco Model Questions Vol1 2019 Biology Question 28
Practice objective / multiple choice question 28 from the 2019 Neco Model Questions Vol1 Biology examination.
Two species of fruit flies differ by 2.4 % in the nucleotide sequence of a mitochondrial gene that is 1500 bp long. The mutation rate for this gene is estimated at \(1.2\times10^{-8}\) substitutions per site per year. (a) Estimate the time since the two species diverged, in million years, using a molecular clock. (b) If the fossil record indicates a divergence 5 million years ago, what is the percentage discrepancy between the molecular estimate and the fossil evidence?
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This is Neco Model Questions Vol1 2019 Biology Question 28. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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