Recombination

The production of a DNA molecule with segments derived from more than one parent DNA molecule. In eukaryotes, this is achieved by the reciprocal exchange of DNA between non-sister chromatids within an homologous pair of chromosomes during prophase of the first meiotic division.

The process by which progeny derive a combination of genes different from that of either parent.

The process by which progeny derive a combination of genes different from that of either parent. In higher organisms, this can occur by crossing over. See also: crossing over, mutation