Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.
偶线期时，以同源染色体活跃的、特定的配对(联会)为特征，形成了单倍数的二价染色体。
2
Meanwhile, MAALs can be used to study the introgression mechanism and the pairing status of homologous chromosomes.
同时， 也便于研究同源染色体的渗入机制和配对状态。
3
Homologous chromosome pairing in both F_1 and F_2 PMC's was observed.