Waec Model Questions Vol1 2024 Biology Question 20
Practice objective / multiple choice question 20 from the 2024 Waec Model Questions Vol1 Biology examination.
In a plant, a disease‑resistance gene (R) is linked to a visible marker gene (M) with a recombination frequency of 5 %. A heterozygous plant (Rr Mm) has the two dominant alleles in coupling (i.e., on the same chromosome, genotype R M / r m) and is crossed with a homozygous recessive plant (rr mm). A seedling from the cross displays the dominant marker phenotype (M). What is the probability that this seedling also carries the resistance allele (R)?
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This is Waec Model Questions Vol1 2024 Biology Question 20. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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