英语词汇“crossing over”是什么意思，“crossing over”的读音、用法及例句翻译-烛光网

词汇	crossing over
释义	crossing over 或 cros·sing-o·ver AHD[krô'sĭng-ōʹvər, krŏs'ĭng-] D.J.[ˌkrɔːsɪŋˈəʊvə, ˌkrɒsɪŋ-]K.K.[ˌkrɔsɪŋˈovɚ, ˌkrɑsɪŋ-]n.（名词） The exchange of genetic material between homologous chromosomes that occurs during meiosis and contributes to genetic variability.交换：一种发生在减数分裂期间的、有助于遗传变异的同源染色体之间的遗传物质的交换
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