Question

which correctly describes crossing over? the process whereby non - sister chromatids exchange genetic material the process whereby homologous chromosomes are pulled to opposite poles of the cell the process whereby sister chromatids are pulled to opposite poles of the cell the process whereby homologous chromosome pairs align randomly along the metaphase plate

Explanation:

Crossing - over occurs during meiosis when non - sister chromatids of homologous chromosomes exchange genetic material, increasing genetic diversity. The other options describe different events in meiosis such as anaphase I (pulling of homologous chromosomes to opposite poles), anaphase II (pulling of sister chromatids to opposite poles), and independent assortment (random alignment of homologous chromosome pairs along the metaphase plate).

Answer:

the process whereby non - sister chromatids exchange genetic material