Centimorgans | Chromosome recombination | Gene recombination

A centimorgan (abbreviated cM) is a unit of measure for the frequency of genetic recombination. One centimorgan is equal to a 1% chance that two markers on a chromosome will become separated from one another due to a recombination event during meiosis (which occurs during the formation of egg and sperm cells). https://www.youtube.com/watch?v=rgByLPyCgIs