The Crossover

In genetics, "crossover" refers to the process during meiosis where homologous chromosomes exchange segments of DNA. This exchange creates new combinations of genes, increasing genetic diversity in offspring. Think of it like swapping sections of two similar books to create new, unique stories. Crossovers happen randomly along the chromosomes, ensuring that each egg or sperm cell has a different mix of genetic information. This process is crucial for evolution and adaptation, as it produces variation within a species.