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Gene Mapping, Percent Recombination and Map Units
Gene mapping is the process by which we determine the location of genes along a given chromosome. This typically involves calculating the distance between the two genes, which is given in special units called map units (also known as recombination units). Map units can be determine by calculating the percent recombination (recombination frequency) between the two genes on the chromosome. One percent recombination is equal to one map unit, two percent recombination is equal to two map units, and so forth. Although map units do not describe the physical distance, they are related. The greater the number of map units (recombination units), the larger the physical distance between the two genes.
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