减数的

In plants that undergo ALTERNATION OF GENERATIONS, spores are produced by meiosis by the sporophyte generation, so are usually haploid; they germinate to produce the haploid gametophyte generation.

在具有世代交替的植物体中，由孢子体世代进行减数分裂产生孢子，因此多为单倍体。它们将发育为单倍体的配子体世代。

2The three plants No.101-1,-2,-3 were male-sterile and gave 10 embryoes after backcrossing to B.

来自于不同亲本的染色体组在减数分裂中表现得极不同步。

Methods Forty patients, who suffer from handicapping dentofacial anomaly and need pull out the maxillary first premolar teeth, were divided into test group (20 patients) and control group (20 patients) randomly.

将40例牙列拥挤，需做减数治疗的牙颌畸形患者，随机分为实验组和对照组各2D例。

Afte GVBD, the two MTOCs begin to organize the meioses spindle. The animal pole process retracted back and the polar body extruded from the site of former animal pole process.

生发泡破裂后，两个微管组织中心组织形成减数分裂纺锤体，然后第一极体以&收缩-排出&的独特方式排出。

Under normal temperature (25-30℃), the process of pollen mother cell meiosis is normal; The most of chromosomes become bivalents which like "V","O","Y","X", sticks and dots, and mainly like dots,"V" and "O"; and a few of univalent (0.79% of Tainong 1 and 0 of Irwin) and multivalent (4.76% of Tainong 1 and 3.57% of Irwin) had been observed.

常温（25~30℃）条件下，花粉母细胞减数分裂过程较为正常，双线期染色体主要形成二价体，二价体构型以&V&型、&O&型、&Y&型、&X&型、点状和棒状等形式存在，并以点状、&V&型和&O&型较多见，出现少量的单价体和多价体，其中台农1号为0.79%和4.76%，Irwin为0和3.57%；同时仅在少量中期Ⅱ和后期Ⅱ花粉母细胞中观察到落后染色体。

In meiosis of pollen mother cells of the tetraploids and the hexaploids, only bivalents were observed in most of the populations, although in several populations or individuals a few univalents or tetravalents appeared. In the hexaploids, hexavalents were not observed.

四倍体和六倍体的花粉母细胞减数分裂染色体构型在大多数居群都为二价体(四倍体中30个二价体，六倍体中45个二价体)，少数居群或是个体除二价体为主外还出现单价体和四价体，六倍体类型没有出现六价体构型。

The separation of homologous chromosomes during meiosis.

在减数分裂过程中同源染色体的分离。

Germinal vesicle breakdown is taken as the sign of oocytemeiotic resumption.

以生发泡破裂作为卵母细胞减数分裂恢复的标志。

PKA activators such as cAMP, 8 - Br -cAMP or phosphodiesterase inhibitor isomethyl butyl xanthine or purified PKA catalytic subunit all can inhibit germinal vesicle breakdown and meiotic maturation in mouse oocytes, also in Xenopus oocytes.

以小鼠卵母细胞为实验对象，给予PKA激动剂cAMP、8-Br-cAMP或磷酸二酯酶抑制剂IMBX均可抑制小鼠卵母细胞的胚泡破裂及减数分裂成熟。

Do you know the tricks of subtractions ?

师：减数是接近整十、整百的数，怎样算简便？

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。