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。
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。
Homologous chromosome pairing in both F_1 and F_2 PMC's was observed.
对F_1和F_2花粉母细胞(PMC)的部分同源染色体配对进行了观察。
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