Neco 2022 Biology Question 40
Practice objective / multiple choice question 40 from the 2022 Neco Biology examination.
In a plant two genes \(A\) and \(B\) are linked on the same chromosome with a recombination frequency of 10 %. A plant heterozygous for both genes (genotype \(A a B b\)) is test‑crossed with a plant homozygous recessive (\(a a b b\)). The parental (non‑recombinant) gametes are \(AB\) and \(ab\).\n(a) Determine the expected phenotypic ratio among the progeny.\n(b) What is the probability that a randomly chosen progeny is homozygous recessive for both genes?
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About This Question
This is Neco 2022 Biology Question 40. It is one of the objective questions from the 2022 Neco Biology examination.
Difficulty level: Medium .
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