Waec Model Questions Vol1 2018 Biology Question 36
Practice objective / multiple choice question 36 from the 2018 Waec Model Questions Vol1 Biology examination.
In a beetle population two colour morphs occur: green (70%) and brown (30%). Green beetles are well camouflaged in a leafy environment, while brown beetles are camouflaged on bark. After a forest is cleared and replaced by grassland where brown colour provides better camouflage, beetles with the brown morph have a selective advantage of s = 0.20 (fitness 1) over the green morph (fitness 1‑s). Assuming discrete generations and Hardy-Weinberg conditions, after how many generations will the frequency of the brown morph exceed 0.60?
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About This Question
This is Waec Model Questions Vol1 2018 Biology Question 36. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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