 
 <translate> Q: Passage: Chromosomal crossover (or crossing over) is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes during sexual reproduction. It is one of the final phases of genetic recombination, which occurs in the pachytene stage of prophase I of meiosis during a process called synapsis. Synapsis begins before the synaptonemal complex develops and is not completed until near the end of prophase I. Crossover usually occurs when matching regions on matching chromosomes break and then reconnect to the other chromosome.

Question: Based on this passage, when does the crossing over occur in meiosis? Let's give stream of consciousness first: <ibo> Q: Passage: Chromosomal crossover (ma ọ bụ crossing over) bụ mgbanwe nke mkpụrụ ndụ ihe nketa n'etiti homologous chromosomes nke na-ebute chromosomes recombinant n'oge mmepụta mmekọahụ. Ọ bụ otu n'ime ihe ndị ikpeazụ na-eme n'ọkpụkpụ mkpụrụ ndụ ihe nketa, nke na-eme n'ọgbọ pachyte nke prophase I nke meiosis n'oge usoro a na-akpọ synapsis. Synapsis na-amalite tupu synaptonemal complex etolite ma ọ gaghị agwụ agwụ ruo mgbe ọ fọrọ nke nta ka ọgwụgwụ nke prophase I. Crossover na-emekarị mgbe mpaghara ndị kwekọrọ na chromosomes kwekọrọ na-agbaji wee jikọọ ọzọ na chromosome ọzọ.  Ajụjụ: Dị ka ihe a e kwuru n'amaokwu a si kwuo, olee mgbe ụmụ anụmanụ na ụmụ anụmanụ na-agbakọ n'otu ebe? Ka anyị buru ụzọ mee ka uche anyị dịrị n'ihe anyị na-eme: 