| 1. | When the male reproductive cell fertilizes the female reproductive cell a zygote is formed . 当男性生殖细胞与女性生殖细胞发生受精时,就形成了一个合子。 |
| 2. | Conception occurs when a sperm fertilizes the egg 当精子使卵子受精时便产生受孕。 |
| 3. | Pumpkins get their start when bees fertilize their flowers 当蜜蜂是南瓜花受精时他们的生命才得以开始。 |
| 4. | No pumpkins will grow if the female flower is not pollinated at the right time 如果雌花没有在恰当的时候受精时不能长成南瓜的。 |
| 5. | Enclosure of the nucellus by the integuments is incomplete , the embryo sac or , in gymnosperms , to the archegonium 珠被并不是将珠心完全封闭,而是留有珠孔以便受精时花粉管进入胚囊,或裸子植物的藏卵器。 |
| 6. | It is also seen in in vitro fertilization as several fertilised eggs are implanted into the body to increase the chance of conception 多胎妊娠可能是使用促性腺激素治疗不育,或在进行体外受精时,为了增加受孕机会而将多个受精卵植入体内的结果。 |
| 7. | Zygotic genome activation ( zga ) is a nuclear reprogramming event that transforms the genome from transcriptional quiescence at fertilization to robust transcriptional activity shortly thereafter 合子基因组激活( zga )是一个细胞核重编程事件,使基因组从受精时的转录静止转变为立即的活跃转录。 |
| 8. | Germinal vesicle ( gv ) transfer is a technique developed in recent years , which may be a valuable research procedure to study cell cycle regulation and characterize the cytoplasmic - nuclear interplay during maturation and fertilization of oocytes 生发泡( gv )移植是最近几年才建立起来的一种技术。通过gv移植可以研究细胞周期调控、成熟及受精时细胞核与细胞质之间的相互作用。 |