Final answer:
Nonallelic homologous recombination between two chromosomes leads to the exchange of genetic material during meiosis, resulting in the formation of recombinant chromosomes carrying a combination of maternal and paternal genes.
Step-by-step explanation:
Nonallelic homologous recombination between two chromosomes leads to the exchange of genetic material between the homologous chromosomes.
This occurs during meiosis, specifically during synapsis, when homologous chromosomes align.
The exchange of genetic material, known as crossover or recombination, results in the formation of recombinant chromosomes.
These recombinant chromosomes carry a combination of maternal and paternal genes, leading to genetic diversity in species.