Cross-over may occur between homologous chromosomes .

互换可能在同源染色体之间发生。

Homologous fresh almonds items for drugs .

杏仁为药食同源物品。

We start with these fragments , and then we have a homologous recombination system that reassembles those into a chromosome .

我们以这些片段开始，然后通过同源重组将其组合到染色体中。

Cross-overs have occurred independently of each other between pair of homologous chromosomes .

交换现象独立地在每一对同源染色体之间发生。

An organism that has the same alleles at a particular gene locus on homologous chromosomes .

纯合子在同源染色体上某一特定基因座有相同等位基因的生物体。