The RF values can be organised to give a genetic or linkage map.
The principles of mapping are:
- Linked genes are arranged into a linkage group with one unit corresponding to a RF of 1%. If two set of genes are unlinked, there is more than one linkage group.
- One linkage group corresponds to one chromosome.
- The implication that the genetic map describes the approximate position of genes on the chromosomes has been confirmed in nucleotide sequencing projects.
- The length of a linkage group, calculated by adding the map length of adjacent intervals, has no theoretical maximum.
The maximum RF value s 50%.
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