Question

during which stage of meiosis does crossing over occur?
multiple choice
anaphase i
telophase ii
prophase ii
prophase i

Explanation:

Crossing over occurs during prophase I of meiosis. In this stage, homologous chromosomes pair up (synapsis) and exchange genetic material at points called chiasmata. This genetic recombination increases genetic diversity. Anaphase I is when homologous chromosomes separate. Telophase II and prophase II are stages in meiosis II, and no crossing - over occurs in these stages as the chromosomes in meiosis II are already in a state of reduced genetic complexity compared to the start of meiosis I.

Answer:

prophase I