Question

what is the meaning of genetic recombination

Answer 1

Genetic recombination is the process in which  offspring is produced with combinations of traits that differ from those found in either parent. In this rearrangement of genes is done to produce offspring with different traits. It is the source of genetic diversity for organisms which reproduce by sexual reproduction.

Answer 2

Answer:

genetic recombination :

In sexually reproducing organisms, during gamete formation, exchange of genetie material occurs between non sister chromatids of homologous chromosomes. This is called crossing over. It produces new genetic combinations which result in variaton. Fertilization between opposite mating gametes leads to various recombinations resulting into the phenotypic variations. These result in change in the frequencies of alleles.

Extra :

Gene flow : Gene flow is movement of genes into or out of a population. Gene movement may be in the form of migration of organism, or gametes (dispersal of pollens) or segments of DNA (transtormation). Gene flow also alters gene frequency causing evoluiionary changes.