Respuesta :
Crossing over created the genetic variation by swaping DNA between the nonsister chromatids in goals to produce the unique genetic chromosomes.
Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis.
Crossing over results in a new combination of genetic information for the cell for a specific trait.
Crossing over ensures that organisms are not identical from generation to generation.
Genetic recombination allows for a variation in genetic material that is passed through the generations.