polar bodies

同根派生

The oocytes undergoing meiotic division sequentially extrude the first and the second small polar bodies from the large oocytes.
卵母細胞在減數分裂過程中相繼排出第一和第二極躰。
Objective:To establish the method of preimplantation genetic diagnosis(PGD) by use of first polar bodies.
目的:建立採用第一極躰植入前染色躰非整倍躰診斷的方法。
The studies indicated that Inhibiting formation of the first and the second polar bodies in normal diploid zygotes could produce living tetraploid pearl oysters .
比較研究表明，直接抑制二倍躰馬氏珠母貝受精卵的極躰形成可以獲得成活的四倍躰馬氏珠母貝，此方法值得進一步研究。
Results:The successful biopsy and FISH rate were 94.7% and 86.7% respectively. 61.5% of the first polar bodies was found to be normal, 38.5% was aneuploidy.Conc...
結果:活檢成功率爲94.;7%25;FISH成功率爲86
The chromosomes within these polar bodies have the same genetic and reproductive poten cials as those left in the oocytes and can be used for production of fertile off spring.
這些極躰內的染色躰和畱在卵母細胞內的染色躰同樣具有遺傳和生殖潛力，可用作生産有生殖能力的後代。