. One map unit corresponds to the physical length of the chromosome in which one cross-over occurs in every


a. 100 meioses

b. 1 meiosis

c. 10 meioses

d. 50 meioses

Best Answer

d.

One map unit corresponds to the 1% recombination. Across longer regions, in which multiple crossovers are possible, map distance equals one-half the average number of the crossovers expressed as a percentage. One map unit, therefore, corresponds to a physical length of the chromosome in which a cross over event occurs, on average, once in every 50 meioses.

 

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