复数：recombinations
1.〔遗〕重组
2.〔物〕复合
3.再组合
4.重新组合
5.重结合
6.再化合
7.交换
8.调制
1.any process that gives rise to offspring that have combinations of genes different from those of either parent, such as crossing-over and independent assortment of chromosomes during gamete formation
recombinations