meiosis metaphase

英

美

网络减数分裂中期

Oocytes from 0.8~ 1.2 mm follicles were able to resume meiosis, but stopped at M ⅰ ( metaphase-ⅰ) stage;
0.8～1.2mm直径卵泡卵母细胞可恢复减数分裂，但只能发育到M期；
The abnormal chromosomal behavior occurred in PMC meiosis of A_2 CMS started from anaphase ⅰ; ( 4) homologous chromosome movement to opposite poles at metaphase ⅰ was delayed or sister chromatids did not divide at metaphase ⅱ;
A2细胞质雄性不育花粉母细胞减数分裂行为从后期Ⅰ开始出现异常，同源或姊妹染色体向两极分离时滞后或不分裂；
Study on wheat monomer during meiosis metaphase ⅰ and relation between it's main morphology and temperature
小麦单体在减数分裂中期Ⅰ与其植株主要形态特征和温度关系的研究
The sex-chromosomes of male plant exhibit a chain of trivalent ( Y_1-X-Y_2) in diakinesis of PMC meiosis. At metaphase I, they make a V-shaped or a ring configuration. Some of them may form a XY-bivalent and a Y-univalent.
雄株的性染色体在减数分裂终变期时，形成Y1XY2的链状三价体，中期Ⅰ时形成v字形或环状，偶有形成XY二价体和一个Y单价体。