mitotic crossing over

例句：

1. 1. Mitosis is the process of cell division during which chromosomes are duplicated and then segregated.
   有丝分裂是细胞分裂过程中染色体复制和分离的过程。
2. 2. During meiosis, homologous chromosomes pair together to form gametes.
   在减数分裂过程中，同源染色体配对形成配子。
3. 3. In mitosis, sister chromatids separate from each other to form two daughter nuclei.
   在有丝分裂中，姐妹染色单体彼此分开形成两个子核。