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Background:
During reproduction genes that are on the same organism are often transmitted to the offspring together. Sometimes, though, the genes are separated during crossing-over. The farther apart the genes are on the chromosome, the greater the chance they will be separated. By studying how often two genes are transmitted together scientists can estimate how close they are on the chromosome and create what is called a linkage map.
Instructions:
Given the recombination frequencies, map the distances between the genes on the chromosome. If gene A and B have a recombination frequency of 13%, then separate the two genes by 13 units. Do this to satisfy all the given frequency data. When your map begins to reflect the data given, the frequencies that you have correct will turn purple to show that you are on the right track.