And that is exactly what we are given. We are told that the percent recombination between A and C is 2%, and 2% recombination is equivalent to two Map units. So of course, these are very simple cases. The more genes we are dealing with, the more complicated this process is. If we increase the gene number to four to five to six, it becomes much more complicated. And in each particular case, to determine what the order of the genes are, we have to know the percent recovery combination between each pair of genes.