Question

How can the concept of recombination frequency be used in genetic mapping?

Answer 1

The “gene map or linkage map” indicates the order of genes on a particular chromosome and the distance between them. The distance is expressed in terms of “map units or centimorgans (cM).”

The frequency of recombination is determined by the distance of gene from the centromere, which is used in genetic mapping. The more is the distance means, the more the percentage of recombinants produced. For example, if a gene is located 10 map units apart from the centromere, the recombination frequency is 10%, if it is located 40 map units apart; the recombination frequency is 40%.