diakinesis是什么意思

2023-11-24 20:25:16

diakinesis

美[ˌdaɪəkəniːsɪs] 英[ˌdaɪəkəniːsɪs]

n. [遗]丝球期

形容词：diakinetic 名词复数：diakineses

Noun

Diakinesis The last stage of the PROPHASE in the first division of MEIOSIS. 终变期：减数分裂第一次分裂前期中的最后一个阶段。
The nucleus in shrinking cytoplasm of microspore mother cell enters into diakinesis stage.16. 收缩的小孢子母细胞中核进入减数分裂终变期。
Prophase may be divided into successive stages termed leptotene, zygotene, pachytene, diplotene, and diakinesis. 前期可被分为连续的阶段：细线期、偶线期、粗线期、双线期和终变期。
Chiasmata are seen during this stage, and by the end of diakinesis the nucleoli and nuclear membrane have disappeared. 在这个时期可以看见交叉，在终变期末细胞核中的核仁，核膜消失。
During diakinesis the sister chromatids of homologous pairs of chromosomes complete their separation, and the chromosomes coil tightly, shortening and thickening. 在终变期配对的同源染色体中的姐妹染色单体完成分离，染色体变成紧密凝集的状态，缩至最小长度。
The characteristic of leptotene, zygotene, pachytene, diploene and diakinesis was observed.The meiosis of Periplaneta Brunnea is similar to other Periplanetas. 细胞分裂过程中细线期、偶线期、粗线期、双线期、终变期染色体形态学特征,结果表明褐斑大蠊减数分裂过程与蜚蠊属其他种相似,符合一般规律。