In a diploid plant, genes a and b are linked and are located very close to each other. single crossovers between these two genes occurs only in 1 out of 16 meioses. if an individual has the genotype ab/ab, explain what percentage of its gametes are expected to be recombinant (either ab or ab)?

3.125% of the gametes will be recombinant.

Explanation:

One single crossover involves 2 out of 4 chromatids of the homologous chromosmome pair. Every time a single crossover event occurs, two parental gametes and two recombinant gametes are generated (so half the times a single crossover occurs the resulting gametes will be parental and the other half they will be recombinant).

If the frequency of crossing over events between genes A and B is 1/16 = 6.25%, half those times the resulting gametes will be recombinant (3.125%).

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