Igcse Model Questions Vol1 2018 Biology Question 11
Practice objective / multiple choice question 11 from the 2018 Igcse Model Questions Vol1 Biology examination.
In a diploid beetle population the allele R (brown) is dominant over r (green). The initial genotype frequencies are \(RR = 0.25\), \(Rr = 0.50\) and \(rr = 0.25\). Survival after one generation of natural selection is \(90\%\) for \(RR\), \(80\%\) for \(Rr\) and \(60\%\) for \(rr\). Assuming survivors reproduce in proportion to their numbers, calculate the frequency of allele \(R\) in the next generation. Give your answer as a decimal to two significant figures.
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This is Igcse Model Questions Vol1 2018 Biology Question 11. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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