Answers:
Exchange of chromosome segment or genetic material between non-sister chromatids.
Explanation:
Crossing over occurs in Prophase 1 of meiosis in cell division. Crossing over or recombination is simply an exchange of genetic material between two non-sister chromatids during the first phase of meiosis which is Prophase 1. It creates a new combination of the gene that is not found in any of parents. crossing over cause genetic diversity in offspring.
