染色体

In meiosis of one hybrid between hexaploidⅢand O.violaceus, no chromosomepairing was found at diakinesis.

随后这些染色体随机的分向两极，但是细胞质并不分裂，导致双核细胞的形成，双核细胞停止了进一步的发育。

At diakinesis, 0.2 tetravalents, 0.05 hexavalents and 0.05 octovalents per pollen mother cell were detected, which was absent in cultivated cucumber. In 30% PMCs, crossed chromosomes occurred at diakinesis.

在减数分裂终变期，平均每个花粉母细胞有0.2个四价体、0.05个六价体和0.05个八价体，约30%的花粉母细胞中存在拉十字的染色体。

ResultsAll dividing stages （leptotene, zygotene, pachytene, diplotene stages and diakinesis） were observed in low power lens and those divi- ding stages increased greatly compared with the routine method.

结果 低倍镜下可见细线期、偶线期、粗线期、双线期、终变期细胞，各期细胞染色体分裂相较常规制片明显增加。

Methods: Twelve microsatellite markers located at chromosomes 3p,9p and 14q were selected to investigate microsatellite alterations in 31 RCC specimens and their paired metastasis specimens by polymerase chain reaction-polyacrylamide gel electrophoresis-ethylene dibromide (PCR-PAGE-EB) staining and sequencing.

选取位于染色体3p、9p、14q上的共计 12个微卫星多态性标记，采用PCR-中性聚丙烯酰胺凝胶电泳-EB染色和测序的方法对31例肾细胞癌患者的原发病灶和配对的转移病灶进行MSI和LOH分析。

Methods: Twelve microsatellite markers located at chromosomes 3p, 9p and 14q were selected to investigate microsatellite alterations in 31 RCC specimens and their paired metastasis specimens by polymerase chain reaction-polyacrylamide gel electrophoresis ethylene dibromide (PCR-FAGE-EB) staining and sequencing.

选取位于染色体3p、9p、14q上的共计12个微卫星多态性标记，采用PCR-中性聚丙烯酰胺凝胶电泳－EB染色和测序的方法对31例肾细胞癌患者的原发病灶和配对的转移病灶进行MSI和LOH分析。

The distilled water and potassium dichromate (0.05%) were used as the negative and positive control respectively.

恢复培养24h后，将根尖固定、酸解、染色、压片和镜检，并计算微核率和染色体畸变率。

Populus has several advantages as a model system. But because of the shortcomes that the chromosome of Populus are small, dioecism, without perianth, trunk of the tree is tall, the period of infancy is 6～7 years.

杨属植物作为林业研究的模式植物，具有优良的实验特性，但是由于杨属植物的染色体小、雌雄异株、无花被、植株高大、幼年期长达6～7年等缺点，给实验研究带来许多不便。

Only a small, sequestered breeding stock is allowed to remain diploid.

只有一小群被隔离饲养的种鱼保持着双染色体。

The diploid number of this species are highest in the birds chromosomes so far inverstigated.

这是迄今已研究过的鸟类染色体二倍体数目最多的一种。

Diploid - Having two copies of every chromosome, one from each parent.

二倍体 -有两个副本，每一个染色体，分别来自父亲和母亲。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！