可受精的

They may represent what remains of the archegonium in angiosperms and the pollen tube may penetrate a synergid first, but they do not participate in the fertilization process and abort soon afterwards.

它们扮演了残留的被子植物藏卵器的角色。花粉管可首先穿透其中一个助细胞，但助细胞并不参与到受精过程中去，而且随后会消亡。

FISH technique could be performed for the detection of HBV in human blastomere cells,and it has great significance to reduce vertical transmission of HBV in IVF-ET.

荧光原位杂交技术可用于卵裂球细胞HBV感染的检测，在体外受精-胚胎移植实践中对降低HBV垂直传播有重要意义。

In the course of 40 years of reproductie life only 500 eggs might be aailable for fertilisation.

在为期40年的生育期中，仅有500枚卵子可用于受精。

That could mean munching on live sea horses or hard-boiled fertilized duck eggs — though steering clear of adulterated chicken breasts.

那可意味着大声咀嚼生海马或是煮过熟了的已受精鸭蛋，虽然避开了掺入次级品的鸡胸肉。

Self-incompatibility (self-sterility) The condition in whereby male gametes cannot fertilize female gametes from the same individual and give rise to a viable embryo.

自交不亲和性：是雄配子体不能与来自同一植物体的雌配子体发生受精作用并产生可育受精卵的情况。

The results showed that : 1 During nonbreeding season, the giant panda′s ovary was still rich with large and small follicular oocytes, and the large follicular oocytes could be matured in vitro; 2 The mean diameter of the oocytes was (141±6.7)μm and lots of cortical granules contained in the cytoplasm of oo...

结果表明∶（1）在非繁殖季节，大熊猫卵巢中小腔及大腔卵泡卵母细胞仍较丰富，其大腔卵泡卵母细胞可在体外培养成熟；（2）大熊猫的卵母细胞平均直径为（141±6.7）μm ，其胞质富含卵黄颗粒；（3）自配 PandaI I号获能液（含丙酮酸钠、肾上腺素等）可使大熊猫精子有效获能；（4）大熊猫卵母细胞体外受精后，经培养可观察到第2 极体，有的受精卵开始发生卵裂。

According to the year with the best large-seed production, the reasons for empty seeds could be estimated as follows: Seed potential per cone calculated as 2 times the number of fertile ovuliferous scales was about 206 seeds. Percentages of seed losses resulting from pre-and post-pollination ovule abortion, prezygotic factors, embryo degeneration, and efficient seed were 33%, 27%, 39%, and%, respectively.

依据大粒种子产率最高的1年来估测空粒种子产生的因素，可以推估如下：依据每个可孕性鳞片所含2粒种子的鳞片数，潜力种子数约有206粒，再依此值算出受粉前后胚珠败育率、受精前败育率、胚败育率、及有效种子率分别为33%、27%、39%及%。

Sex selection by manipulating the conditions of sperm-oocytes fertilization would be one of the most practicable and widely used methods.

控制受精环境即可控制性别，这种方法不需昂贵的仪器设备或者药品，易实践，可普遍应用，其经济效益和社会效益难以估量。

Say the common practice of storing fertilised embryos can prooke genetic changes that may deelop into mental disorders.

美国研究人员认为保存受精胚胎的一般操作可引起遗传改变，从而导致精神疾病。

The hormones in the contraceptive patch stop your ovaries from releasing an egg each month, which could then be fertilised by sperm.

该激素的避孕药具修补程序停止您的卵巢从释放一个鸡蛋每个月，便可由精子受精。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。