Waec Model Questions Vol1 2018 Biology Question 47
Practice objective / multiple choice question 47 from the 2018 Waec Model Questions Vol1 Biology examination.
In a plant heterozygous for two linked genes A (dominant allele A, recessive a) and B (dominant B, recessive b), a test cross is performed with a plant homozygous recessive (aa bb). The progeny numbers are: 130 A‑B‑ (parental), 130 a‑b‑ (parental), 70 A‑b‑ (recombinant), 70 a‑B‑ (recombinant). Calculate (i) the recombination frequency between the two genes, (ii) the map distance in centimorgans, and (iii) state whether the genes are linked.
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About This Question
This is Waec Model Questions Vol1 2018 Biology Question 47. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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