recombination

Genetics.

1. the formation of new combinations of genes, either naturally, by crossing over or independent assortment, or in the laboratory by direct manipulation of genetic material.

noun

1. genetics any of several processes by which genetic material of different origins becomes combined. It most commonly occurs between two sets of parental chromosomes during production of germ cells
2. physics the union of free electrons and holes in a semiconductor or of free ions and electrons in a plasma

n.

1791, from re- + combination.

n.

1. The natural formation in offspring of genetic combinations not present in parents by the processes of crossing over or independent assortment.