Question

the exchange of genetic material between nonsister chromatids is called crossing - over and occurs during which phase of meiosis?
multiple choice
interphase
metaphase i
prophase ii
prophase i

Explanation:

Crossing - over occurs during prophase I of meiosis. In this phase, homologous chromosomes pair up (synapsis), and non - sister chromatids exchange genetic material. Interphase is for cell growth and DNA replication. Metaphase I is for chromosome alignment. Prophase II is part of meiosis II (no crossing - over as homologous chromosomes have already separated in meiosis I).

Answer:

prophase I