倍数体

In plants and algae that undergo alternation of generations, a gametophyte is the multicellular structure, or phase, that is haploid, containing a single set of chromosomes, and has its own information on genetic expression.

在植物世代交替的生活史中，配子体是产生配子和具有单倍数染色体的植物体，并且有自己的遗传表达信息。

Having a chromosome number greater than but not an exact multiple of the normal euploid number.

超倍的有一个染色体数目的，此数目比正常超倍体数目大，但不是它的整倍数

It turned out reproduction rete of chrysanthemum was raised,the regular,non-plant diseases and insect pests could be offered to the market. Shoot tip were used as explants to study the effects of different sterilization methods, illumination intensity and concentrations of 6-BA and NAA on shoot propagation. Rooting with perlite, vermiculite and river sand instead of agar was studied. In the process of preliminary multiplication, the effect of using 0.1% HgCl_2 in sterilization of explants was better than using saturated bleaching solution. The highest multiplication rate was found under whole illumination. MS media with 6-BA from 0.2 mg·L~(-1) to 5 mg·L~(-1) and NAA from 0.05 mg·L~(-1) to 2 mg·L~(-1) were tested and as a result, the highest differentiation rate and the multiplication rate was reached with 0.2 mg·L~(-1) 6-BA, 0.05 mg·L~(-1) NAA.

本实验以菊花的茎尖为外植体，研究了不同灭菌方法，光照强度，全光照、半光照和弱光处理以及不同6-BA和NAA浓度及配比对于试管苗增殖的影响，并研究了珍珠岩、蛭石和河砂等琼脂替代物对于菊花生根的影响，结果表明：在初代培养物建立的过程中采用0.1％升汞进行表面灭菌的效果好于饱和漂白粉的灭菌效果；在全光照条件下外植体的增殖倍数最高；在试管苗增殖培养的过程中，以MS为基本培养基，并在培养基中添加0.2～5mg·L~(-1)6-BA和0.05～2mg·L~(-1)NAA，其中0.2mg·L~(-1)6-BA和0.05mg·L~(-1)NAA最适于外植体的分化和增殖，其分化率为100％，增殖倍数为12。

These microscopic characteristics of pollen grain and stomata could be used as the evidence to identify diaploid spieces and hexaploid, octoploid spieces whose chromosome ploidies are hugely different.

结论］用花粉粒和气孔的一些微观特征作为鉴别二倍体和六倍体、八倍体等染色体组倍数相差较大的物种有一定的依据。

Strictly speaking, there shouldn't be such thing as a polyploid mutant.

严格来说，应该没有如一个倍数体突变异种的事物。

If Berg Katse was polyploid himself, that explained a lot.

如果冰山 Katse 是倍数体他自己，那解释很多。

Reduction division The first division of meiosis , including prophase, metaphase I, and anaphase I. It results in a haploid number of chromosomes gathering at each end of the nuclear spindle.

减数分裂：减数分裂中的第一次分裂，包括分裂前期，中期 I 和后期 I ，形成单倍数目的染色体在每一个核纺锤体末端聚集。

Some species of sturgeons are polypolids. The hybridization is common even between genera Acipenser and Huso. The parents of different species with the same chromosome numbers will produce reproductive offsprings, and thus, genetic introgression among species would easily happen in the nature conditions.

鲟具有多倍体特徵，其中鲟属及鳇属杂交的情形非常普遍，染色体倍数相同的亲代杂交产生的子代具有繁殖力，因此在自然情况下或人为移殖时很容易造成基因渗入现象。

Results In vitro recovery of the probe was mainly influenced by the perfusion rate. When the perfusion rate was set at 1.0μL/min, in vitro and in vivo recoveries of the probe were 50.16±2.34% and 14.096±0.58%, respectively. The enhancement indexes for 3%, 5% mentha oil were 3.8 and 17.6, respectively. The enhancement indexes were 9.2 and 24.8, for 3% and 5% of Azone, respectively. Conclusion The steady sate flux of meloxicam in rats is significantly improved by enhancer mentha oil and azone.

结果： 在实验条件下微渗析探针的体外回收率主要受灌注液流速的影响，为（50.16±2.34）%；反向渗析法测得探针的在体回收率为（14.096±0.58）%；MO的体积分数为3%和5%时，增渗倍数分别为3.8，17.6；azone的体积分数为3%和5%，增渗倍数分别为9.2，24.8；结论：不同体积分数的MO和azone均可显著增加美洛昔康经皮渗透稳态流量，azone的体积分数为5%时，大鼠角质层的屏障作用可能受到了较大程度的破坏。

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