Question

during which phase of meiosis does crossing-over occur? (1 point) anaphase i telophase i prophase i metaphase i

Explanation:

In meiosis, crossing - over (exchange of genetic material between homologous chromosomes) occurs during prophase I. During prophase I, homologous chromosomes pair up (synapsis), and non - sister chromatids can exchange segments. Anaphase I is about the separation of homologous chromosomes, telophase I is the end of the first meiotic division with cell division, and metaphase I is about the alignment of homologous chromosome pairs at the cell equator. So the correct option is prophase I.

Answer:

C. prophase I (assuming the options are labeled as A. anaphase I, B. telophase I, C. prophase I, D. metaphase I)