Igcse Model Questions Vol1 2021 Biology Question 9
Practice objective / multiple choice question 9 from the 2021 Igcse Model Questions Vol1 Biology examination.
In a plant, flower colour is controlled by gene \(R\) (dominant red, recessive white) and plant height by gene \(T\) (dominant tall, recessive dwarf). The two genes are linked with a recombination frequency of 12 %. A heterozygous plant with genotype \(RrTt\) in the coupling phase (\(RT/rt\)) is crossed with a homozygous recessive plant (\(rrtt\)). What percentage of the progeny are expected to be red and tall (\(RT\))?
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This is Igcse Model Questions Vol1 2021 Biology Question 9. It is one of the objective questions from the 2021 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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