Final answer:
Crossing over occurs during prophase I of meiosis and involves the exchange of genetic material between non-sister chromatids of homologous chromosomes.
Step-by-step explanation:
True.
Crossing over occurs during prophase I of meiosis, specifically at the chiasmata, which are points of exchange between non-sister chromatids of homologous chromosomes.
This exchange of genetic material results in the recombination of genes, creating unique combinations of alleles.
Therefore, crossing over does occur at the ends of chromosomes, rather than near the centromeres.