原核的

Theory that introns were present in early life forms and were retained by eukaryotes, but lost by prokaryotes.

认为内含子在早期生命形式中即存在并被真核生物保留而被原核生物丢失的理论。

Prokaryotic genes do not normally contain introns and so splicing is unnecessary.

原核基因通常不含有内含子等，剪接是不必要的。

Plant lectin has important in vivo physiological functions, and it is necessary to expressing BanLec gene in Escherichia coli and investigate its functions.

植物凝集素具有重要的生理功能，通过原核表达香蕉凝集素基因并探讨其功能具有重要意义。

Only prokaryotes, such as bacteria, lack lysosomes

只有细菌这样的原核生物才没有溶酶体。

These zygotes were divided into four groups according to the different zygote pronuclei orientation and the developmental potential.

根据早期卵裂时间及原核构型不同进行筛选而移植的129个体外受精、卵胞浆内单精子注射周期，共1 032个正常受精卵为资料。

Methods:The HBVtransgenic mice were prepared by microinjection of complate 2.0 copy HBV genome into pronuclei fertilized eggs.

应用受精卵原核显微注射的方法，产生HBV转基因小鼠。

Then, the two recombinant genes were microinjected into the male pronuclei of fertillized mouse eggs for generating transgenic mice harbouring the introduced genes, respectively.

进而将它们分别导入小鼠受精卵雄原核，作成相应的转基因小鼠，则发现它们都失去了表达特性。

Resembled to control oocytes, MAPK was inactivated after cytoplasts activation. However, after activation the cytoplasts showed fragmentation while pronuclei were formed in the control oocytes. This indicated that nuclei play important role in maintainence of oocytes normal morphology.

成熟胞质的活化与卵母细胞相似，在活化后MAPK被迅速灭活，只是胞质在活化处理后均发生碎裂，而卵母细胞活化后形成原核，这表明核在细胞形态维持中起重要作用。

This phenomenon is quite common in prokaryote, bacteriophages and viruses as an economical and effective way to present the genome information.

双重编码现象在原核生物、噬菌体和病毒中作为一种可有效利用基因组的方式而普遍存在。

In chapterⅡ, knowledge of biology related to this study is explained, and the replication mechanism of prokaryote genome is illuminated.

论文第二章重点介绍论文中涉及的生物学背景知识，阐明了原核生物染色体复制机制。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失