| 1. | Chromosome material with exhibits of such behaviour is called heterochromatin .
表现这种现象的染色体物质叫做异染色质。 |
| 2. | Heterochromatin has shown to be composed largely of short repeated polynucleotide sequences .
异染色质大部分是由短而重复的多核苷酸序列所组成的。 |
| 3. | The origin of such large amounts of constitutive heterochromatin and their role in karyotype evolution and speciation remain a mystery .
如此大量的结构异染色质的来源及其在染色体组型进化和物种形成中的任务仍是一个谜。 |
| 4. | Aberration analysis of chromosome 9 heterochromatin
9号染色体异染色质区的变异分析 |
| 5. | Euchromatin is thought to be actively involved in transcription and therefore protein synthesis , while heterochromatin is inavtive
异染色质由于折叠压缩程度高，所以被碱性染料染色时着色较深。 |
| 6. | Cells take diverse shapes . these are epithelial cords of block - like cells . as always , nucleoli and nuclear heterochromatin stain darkly with hematoxylin
不同形态的细胞。这些是立方细胞排列成的上皮索状结构。总之，核仁与细胞核中的异染色质被苏木精染成深色。 |
| 7. | During this process , a series of modification appeared on the xi , which led to the formation of stable heterochromatin that can be inherited steadily in cell duplication
失活的染色体上面往往发生一系列的修饰，导致产生非常稳定的异染色质且能在细胞复制的过程中稳定遗传。 |
| 8. | Therefore , the differences of the amount of the heterochromatin of in each species is high , and even the difference exists in the same species from different regions
但不是每个种都有端带和居间带。因此，各个种的结构异染色质含量差异较大，甚至同一个种不同地理种群间都有所不同。 |
| 9. | We found nuclear deformation lymphocytes with increased heterochromatin and impaired thymus epithelium cells with increased lysosomes and deformation of mitochondrias . ( 4 ) effects on mouse liver of so2 challenge : so2 can cause significant liver injury . he staining showed several kinds of necrosis of liver including spot necrosis , focal necrosis and submassive necrosis infiltrated with lymphocytes , monocytes , few neutrophils and eosinophils ; tem observation showed fatty degeneration with dispersion of fatty droplets and dilation of rough endoplasmic reticulums , acid degeneration with significant hyperplasia of mitochondrias , necrosis of hepatocytes with karyorrhexis and other organelles losing their normal structure
( 4 )二氧化硫染毒对小鼠肝脏的组织学结构有明显影响，可引起肝脏点状坏死、灶状坏死甚至片状坏死，伴随不同程度的炎性细胞浸润；透射电镜观察发现二氧化硫可引起肝细胞脂肪变性、嗜酸性颗粒变和坏死，脂肪变肝细胞中可见大小不等的脂滴存在，嗜酸性颗粒变肝细胞中可见线粒体明显增生，坏死肝细胞可见细胞核结构破坏，细胞器减少，细胞膜不完整。 |
