终变期末有些二价体的同源染色体只在末端连在一起。

Diakinesis bivalents end of some of the homologous chromosomes together only at the end.

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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。

Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.

youdao

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。

Synapsis (pairing) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.

youdao