metaphase

简明释义

英[ˈmetəˌfeɪz]美[ˈmetəˌfeɪz]

n. （细胞分裂的）[细胞] 中期

adj. 中期的；转位期的

英英释义

单词用法

同义词

反义词

例句

1.Right to bear hasn't been existed until the metaphase of 19th century, it undergoes three phases, they are natural to bear, compulsory to bear, and right to bear.

生育权并非历来有之，而是先后经历了自然生育、义务生育和权利生育三个阶段。

2.Conclusion: Rutosids has the preferable inhibitory action on perithelial cell apoptosis of early metaphase retinal microangiopathy in diabetes rats.

结论：络通对糖尿病大鼠视网膜微血管病变早中期的周细胞凋亡有较好的抑制作用。

3.With Jin X Fault Block Reservoir coming into metaphase development, the yield has declined rapidly and the water cut of oil Wells has rose fleetly.

晋x断块油藏已进入开发中期，产量快速下降，油井含水上升很快。

4.The diesel car, mingle power automobile and fuel battery are solving project for automobiles power pushing system in the near future, metaphase and long dated.

柴油机、混合动力、燃料电池代表了汽车动力推进系统近期、中期和远期的解决方案。

5.Metaphase is adjusted already began, do not exclude the fine stock that rise.

中期调整已开始，不排除上涨的好股票。

6.The cells whose chromosomes were dispersed well and in metaphase were selected, and number of chromosomes was counted, and then the morphology of chromosomes was observed.

选择染色体分散良好，无重叠的分散中期的细胞进行记数，观察染色体形态。

7.The cells whose chromosomes were dispersed well and in metaphase were selected, and number of chromosomes was counted, and then the morphology of chromosomes was observed.

选择染色体分散良好，无重叠的分散中期的细胞进行记数，观察染色体形态。

8.The subsurface pipe drainage came into being just in the metaphase of20th century. It was broadly applied in USA, Japan and Egypt for30 ~ 40years.

暗管排水在20世纪中期初步形成，近30 ~40年在美国、日本、埃及等国家得到广泛应用。

9.Creative career, his life is divided into early stage, metaphase, later period.

他一生的创作生涯共分早期、中期、晚期三个阶段。

10.During cell division, chromosomes align at the center of the cell in metaphase.

在细胞分裂过程中，染色体在细胞中心排列于中期。

11.Errors during metaphase can lead to genetic disorders.

在中期期间的错误可能导致遗传疾病。

12.The transition from metaphase to anaphase is crucial for proper cell division.

从中期到后期的过渡对正确的细胞分裂至关重要。

13.Scientists observe the metaphase stage to study chromosomal abnormalities.

科学家观察中期阶段以研究染色体异常。

14.In metaphase, spindle fibers attach to the centromeres of chromosomes.

中期时，纺锤丝附着在染色体的着丝粒上。

作文

In the study of biology, understanding cellular processes is crucial for comprehending how life functions at a microscopic level. One of the key stages in cell division is known as metaphase, which is a critical part of both mitosis and meiosis. During metaphase (中期), chromosomes become highly condensed and are aligned along the metaphase plate, an imaginary line that divides the cell into two halves. This alignment is essential for ensuring that each daughter cell receives an identical set of chromosomes. The significance of metaphase extends beyond mere organization; it is a moment where the precision of genetic distribution is paramount.The events leading up to metaphase are equally important. Prior to this stage, during prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down. The spindle fibers, which are critical for chromosome movement, start to form from the centrosomes. As cells transition from prophase to metaphase, the spindle apparatus plays a vital role in locating and attaching to the centromeres of the chromosomes. This process is known as spindle attachment, and it is crucial for the successful separation of chromosomes in the subsequent anaphase.During metaphase, the tension created by the spindle fibers ensures that the chromosomes are correctly positioned. If any errors occur at this stage, such as improper attachment or misalignment, it can lead to aneuploidy, a condition where cells have an abnormal number of chromosomes. This is why metaphase is often described as a checkpoint in the cell cycle, where the cell assesses whether it is ready to proceed with division. The integrity of this process is vital for the health of the organism, as mistakes can result in diseases, including cancer.Moreover, the study of metaphase has practical applications in medical science. For instance, karyotyping, a laboratory procedure that examines the number and structure of chromosomes, often involves analyzing cells during metaphase. By doing so, scientists can identify chromosomal abnormalities that may be linked to genetic disorders or cancers. The ability to visualize chromosomes at this stage provides invaluable information for diagnosis and treatment planning.In conclusion, metaphase (中期) is not just a transitional phase in the cell cycle; it is a pivotal moment that ensures the accurate distribution of genetic material. Understanding this stage offers insights into the fundamental mechanisms of life and the importance of precision in biological processes. As research continues to advance, the implications of metaphase in both health and disease will undoubtedly remain a significant focus for scientists and medical professionals alike. By grasping the nuances of metaphase, we can appreciate the complexity of life at the cellular level and the delicate balance required for proper development and function.

在生物学的研究中，理解细胞过程对于理解生命在微观层面上的运作至关重要。细胞分裂的关键阶段之一被称为metaphase（中期），这是有丝分裂和减数分裂的重要组成部分。在metaphase（中期）期间，染色体高度浓缩并沿着中期板对齐，这是一个将细胞分成两半的想象线。这种排列对于确保每个子细胞获得相同的染色体组至关重要。metaphase（中期）的重要性超越了简单的组织；这是一个遗传物质分配精确性的时刻。在metaphase（中期）之前的事件同样重要。在这个阶段之前，在前期，染色质凝聚成可见的染色体，核膜开始崩解。纺锤体纤维，这对染色体运动至关重要，开始从中心体形成。当细胞从前期过渡到metaphase（中期）时，纺锤体装置在定位和附着于染色体的着丝粒方面发挥着重要作用。这个过程被称为纺锤体附着，它对于后续的后期中染色体的成功分离至关重要。在metaphase（中期）期间，由纺锤体纤维产生的张力确保染色体正确定位。如果在这个阶段发生任何错误，例如不当附着或未对齐，可能会导致非整倍体，即细胞具有异常数量的染色体。这就是为什么metaphase（中期）通常被描述为细胞周期中的一个检查点，在这里细胞评估是否准备好继续分裂。这个过程的完整性对于生物体的健康至关重要，因为错误可能导致疾病，包括癌症。此外，对metaphase（中期）的研究在医学科学中具有实际应用。例如，核型分析是一种实验室程序，用于检查染色体的数量和结构，通常涉及分析在metaphase（中期）期间的细胞。通过这样做，科学家可以识别可能与遗传疾病或癌症相关的染色体异常。能够在这一阶段可视化染色体提供了对诊断和治疗计划的宝贵信息。总之，metaphase（中期）不仅仅是细胞周期中的一个过渡阶段；它是一个关键时刻，确保遗传物质的准确分配。理解这一阶段提供了对生命基本机制的洞察，以及生物过程中精确性的重要性。随着研究的不断进展，metaphase（中期）在健康和疾病中的影响无疑将继续成为科学家和医疗专业人士的重点。通过掌握metaphase（中期）的细微差别，我们可以欣赏细胞层面上生命的复杂性以及正常发展和功能所需的微妙平衡。