减数

The female gametes with 21 chromosomes intended to be with stronger competitive ability for pollination. Successful backcross didn't depend on the unreduced female gametes from restitution division.

同时也证明，回交的成功并不取决于杂种F1通过重建分裂形成的未减数雌配子。

Meanwhile, by either artificial chromosome doubling via colchicine treatment or spontaneous chromosome doubling via a union of unreduced gametes (2n) from T. turgidum-Ae.

同时，通过秋水仙碱对四倍体小麦-节节麦杂种进行染色体人工加倍或利用未减数配子自然加倍，我国科学家创制了一些新的人工合成小麦。

Under illumination condition,the ED50 and ED90 of direct virucidal activity of C60 to HSV-1F strain are 0.05313 μg/ml and 0.1696 μg/ml respectively,and the ED50 and ED90 of infection block action of C60 are 0.9461 μg/ml and 5.643 μg/ml separately.

以逆相蒸馏法合成了富勒烯脂质体，用药物对病毒所致细胞病变的抑制实验以及病毒的空斑减数实验，观察C60脂质体对HSV-1F株的直接杀灭、感染阻断及增殖抑制作用。

Methods We prepare the fullerene C60 liposomes using reversed phase distillation method,examine the direct virucidal activity,infection block and multiplication inhibition of C60 liposomes to HSV-1F strain,using inhibition experiment of cellular pathologic effect of virus and plaque reduction assay.

以逆相蒸馏法合成了富勒烯脂质体，用药物对病毒所致细胞病变的抑制实验以及病毒的空斑减数实验，观察C60脂质体对HSV-1F株的直接杀灭、感染阻断及增殖抑制作用。

Methods By using Vero cell as the host cells and with acyclovir as the positive control, anti-HSV-1 activity of the extract was observed and determined with cytopathic effect assay and plaque reduction assay. Initial studies on antiviral mechanism included three aspects: virucidal assay, attachment assay and penetration assay.

以Vero细胞为宿主细胞，阿昔洛韦为阳性对照药物，通过观察细胞病变效应与空斑减数实验测定川楝子提取物抗HSV-1活性，计算其IC50与治疗指数，并从药物对病毒的直接灭活作用、对病毒吸附的影响及对病毒穿膜的影响三个方面初探川楝子提取物抗HSV-1活性的机理。

These results indicate that TGA treatment can accelerate GVBD in Xenopus oocytes, and GVBD of mouse oocytes at low dose.

在小鼠中卵母细胞中，低剂量的TGA也可加速第1次减数分裂的启动。

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。

Chiasmata also help to hold homologs together until the start of anaphase, thus helping to ensure the correct distribution of chromosomes into the daughter nuclei.

交叉还可以使同源染色体始终在一起直到细胞减数分裂的后期，这样确保了染色体可以正确的进入子细胞。

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。

Theoretical investigations suggested that the major bottleneck in narrowing down the confidence interval of QTL location is the limited number of informative meioses obtainable in most mapping populations of traditional methods.

理论研究表明，传统方法中作图群体有限的有效减数分裂数是进一步缩小QTL置信区间的一个瓶颈。

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。