Independent assortment the random distribution of the gametes of genes located on different chromosomes. Thus, and individual of genotype Aa Bb will produce equal numbers of four types of gametes: AB, Ab, aB, and ab. See Mendel's laws.Independent probabilities in a group of events, the occurrence of any one event having no influence on the probability of any other event. For example, the orientation of one pair of homologous chromosomes on the first meiotic metaphase plate does not influence the orientation of any other pair of homologs. See independent assortment.
From, A Dictionary of Genetics (6th Edition), R.C. King & W. D. Stansfield (2002: Oxford University Press, Inc., New York, NY).