tail spindle

简明释义

顶针套

英英释义

例句

1.The technician examined the tail spindle to ensure it was properly aligned.

技术员检查了尾轴以确保它正确对齐。

2.The engineer designed a new tail spindle that reduces vibrations during operation.

工程师设计了一种新的尾轴，可以减少操作过程中的振动。

3.The drone's flight stability improved significantly after replacing the tail spindle.

更换尾轴后，无人机的飞行稳定性显著提高。

4.During the maintenance check, we found that the tail spindle was worn out.

在维护检查中，我们发现尾轴磨损严重。

5.Proper lubrication of the tail spindle is essential for optimal performance.

对尾轴进行适当润滑对最佳性能至关重要。

作文

In the world of biology, various terms and phrases are used to describe intricate structures and functions within living organisms. One such term is tail spindle, which refers to a specific structure found in certain cells during the process of cell division, particularly in meiosis and mitosis. This structure plays a crucial role in ensuring that chromosomes are properly separated and distributed to the daughter cells. Understanding the function and significance of the tail spindle can provide insights into the fundamental processes of life and how genetic material is passed from one generation to the next.The tail spindle is composed of microtubules, which are dynamic structures that can rapidly grow and shrink. These microtubules form a spindle apparatus that extends from the poles of the cell towards the center, where the chromosomes align. The proper functioning of the tail spindle is essential for accurate chromosome segregation. If the spindle does not function correctly, it can lead to errors in cell division, resulting in conditions such as aneuploidy, where cells have an abnormal number of chromosomes. This can have serious implications for development and health, including cancer and genetic disorders.During the metaphase stage of cell division, the chromosomes are lined up at the cell's equatorial plane, and the tail spindle attaches to the centromeres of the chromosomes through specialized protein structures known as kinetochores. Once the chromosomes are properly aligned and attached, the cell progresses to anaphase, where the tail spindle pulls the sister chromatids apart toward opposite poles of the cell. This movement is facilitated by the polymerization and depolymerization of microtubules, which provide the necessary force to separate the chromosomes.The study of the tail spindle has broader implications beyond just understanding cell division. Research into how spindles operate can reveal potential targets for cancer therapies, as many cancer cells exhibit abnormal spindle function. By developing drugs that can specifically target the mechanisms of the tail spindle, scientists hope to create treatments that can selectively kill cancer cells while sparing normal cells.Moreover, the tail spindle is not only important in human biology but also in the reproduction and development of many organisms, including plants and animals. In plants, for instance, the spindle apparatus plays a vital role in the formation of gametes, which are crucial for sexual reproduction. Understanding the evolution and variation of the tail spindle across different species can provide insights into how life adapts and evolves over time.In conclusion, the term tail spindle encapsulates a vital aspect of cellular biology that is fundamental to life. Its role in ensuring accurate chromosome segregation during cell division is critical for maintaining genetic stability. As research continues to uncover the complexities of the tail spindle, we gain a deeper appreciation for the intricacies of life and the delicate balance required for healthy cellular function. Whether in the context of human health or the broader spectrum of life on Earth, the tail spindle remains a key player in the ongoing story of biology and evolution.

在生物学的世界中，各种术语和短语用于描述生物体内复杂的结构和功能。其中一个术语是尾纺锤体，它指的是在细胞分裂过程中，特别是在减数分裂和有丝分裂中发现的一种特定结构。这个结构在确保染色体被正确分离和分配到子细胞中起着至关重要的作用。理解尾纺锤体的功能和意义可以提供对生命基本过程的深入了解，以及遗传物质如何从一代传递到下一代。尾纺锤体由微管组成，这是一种动态结构，可以快速生长和缩小。这些微管形成一个纺锤体装置，从细胞的极点延伸到中心，染色体在这里排列。尾纺锤体的正常功能对于准确的染色体分离至关重要。如果纺锤体无法正常工作，可能导致细胞分裂中的错误，从而导致如非整倍体等情况，其中细胞具有异常数量的染色体。这对发育和健康可能产生严重影响，包括癌症和遗传疾病。在细胞分裂的中期阶段，染色体排列在细胞的赤道面上，尾纺锤体通过称为动粒的特化蛋白结构附着于染色体的着丝粒。一旦染色体正确排列并附着，细胞将进入后期，此时尾纺锤体将姐妹染色单体拉向细胞的相对两极。这一运动是通过微管的聚合和去聚合来促进的，这为分离染色体提供了必要的力量。对尾纺锤体的研究不仅限于理解细胞分裂。研究纺锤体的运作方式可以揭示癌症治疗的潜在目标，因为许多癌细胞表现出异常的纺锤体功能。通过开发能够专门针对尾纺锤体机制的药物，科学家希望创造出能够选择性杀死癌细胞而不损害正常细胞的治疗方法。此外，尾纺锤体在许多生物体的生殖和发育中不仅在人类生物学中重要，在植物和动物中同样重要。例如，在植物中，纺锤体装置在配子形成中发挥着至关重要的作用，这对于有性繁殖至关重要。理解尾纺锤体在不同物种中的演变和变异可以提供对生命如何适应和进化的见解。总之，术语尾纺锤体概括了细胞生物学的一个重要方面，这是生命的基础。它在确保细胞分裂期间准确的染色体分离中的作用对于维持遗传稳定性至关重要。随着研究继续揭示尾纺锤体的复杂性，我们对生命的复杂性以及健康细胞功能所需的微妙平衡有了更深刻的理解。无论是在人体健康的背景下，还是在地球上生命的更广泛谱系中，尾纺锤体仍然是生物学和进化持续故事中的关键角色。