mitosis

简明释义

英[maɪˈtəʊsɪs]美[maɪˈtoʊsɪs]

n. 间接核分裂，[细胞] 有丝分裂

复 数 m i t o s e s

英英释义

单词用法

同义词

反义词

例句

1.Abnormality of chromosome behavior occurs from premeiotic mitosis until various stages in meiosis.

从减数分裂前有丝分裂到减数分裂的各个阶段，染色体行为都会发生异常。

2.The invention also discloses the application of the compounds and the salt in treating tumor; the usage can play the role of inhibiting over proliferation of cell through inhibiting cell mitosis;

本发明还公开了该类化合 物或其盐在治疗肿瘤中的应用，所述的用途可通过抑制有丝分裂，从而发挥其抑制 细胞过度增殖的功效；

3.Taking the process of cell mitosis as example, this essay discusses the implementing of cooperative study and its significance, and also explains the way of fostering cooperative spirit.

本文以生物教学中细胞有丝分裂过程为例，探讨了合作学习的实施及其意义，阐述了合作精神的培养途径。

4.Butt the news cycle is only one reason summer may prove the best time, relatively speaking, for Hollywood power couples to achieve celebrity mitosis.

对好莱坞的著名情侣们来说，相对而言，夏季可能是分手的最好季节。不过，新闻周期只是其中一个原因。

5.Effects on mitosis and chromosomal aberrations of tobacco root tip cells were observed by the method of artificially inducing para-nodule treated with 2, 4-d and rhizobium.

通过人工诱导烟草结瘤的方法，观察给予2,4 - D、根瘤菌后，其对烟草根尖细胞有丝分裂和染色体畸变的影响。

6.The entry of eukaryotic cells into mitosis is regulated by cdc2 kinase activation, a process controlled at several steps including cyclin binding and phosphorylation of cdc2 at Thr161 (1).

cdc2蛋白激酶的激活参与调节真核细胞进入有丝分裂，cdc2的激活受多个步骤的调控，包括周期蛋白的结合、cdc2苏氨酸161位的磷酸化(1)。

7.Due to the continuously deepening research on aurora kinases recently, the key functions of aurora kinases in cell mitosis and tumorigenesis have been gradually revealed.

近年来，随着极光激酶相关研究的不断深入，人们逐渐认识到极光激酶在细胞有丝分裂以及肿瘤形成中的重要功能。

8.The invention also discloses the application of the compounds and the salt in treating tumor; the usage can play the role of inhibiting over proliferation of cell through inhibiting cell mitosis;

本发明还公开了该类化合 物或其盐在治疗肿瘤中的应用，所述的用途可通过抑制有丝分裂，从而发挥其抑制 细胞过度增殖的功效；

9.During the cell cycle, cells undergo mitosis (有丝分裂) to ensure proper growth and development.

在细胞周期中，细胞经历mitosis（有丝分裂）以确保适当的生长和发育。

10.In our biology class, we learned that mitosis (有丝分裂) consists of several stages: prophase, metaphase, anaphase, and telophase.

在我们的生物课上，我们了解到mitosis（有丝分裂）由几个阶段组成：前期、中期、后期和末期。

11.The study of mitosis (有丝分裂) helps scientists understand how organisms grow and reproduce.

对mitosis（有丝分裂）的研究帮助科学家了解生物体如何生长和繁殖。

12.Cancer cells often bypass normal controls of mitosis (有丝分裂), leading to uncontrolled growth.

癌细胞通常绕过正常的mitosis（有丝分裂）控制，导致不受控制的生长。

13.The process of mitosis (有丝分裂) is crucial for tissue repair after an injury.

在受伤后，mitosis（有丝分裂）的过程对于组织修复至关重要。

作文

Mitosis is a fundamental process for life, as it is the method by which a single cell divides into two identical daughter cells. This process is crucial for growth, development, and tissue repair in multicellular organisms. During mitosis（有丝分裂）, the genetic material is replicated and evenly distributed to ensure that each new cell receives an exact copy of the parent cell's DNA. This ensures genetic continuity and stability across generations of cells.The process of mitosis（有丝分裂）can be divided into several distinct phases: prophase, metaphase, anaphase, and telophase, followed by cytokinesis. In prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down. The spindle fibers start to form, which will play a critical role in moving the chromosomes during the next phases.During metaphase, the chromosomes align at the cell's equatorial plane, known as the metaphase plate. This alignment is crucial, as it ensures that each daughter cell will receive one copy of each chromosome. The spindle fibers attach to the centromeres of the chromosomes, preparing them for separation.Anaphase follows, where the sister chromatids are pulled apart by the spindle fibers and move toward opposite poles of the cell. This separation is essential for ensuring that each new cell will have the correct number of chromosomes. Finally, in telophase, the separated chromatids reach the poles, and the nuclear envelope re-forms around each set of chromosomes, which begin to de-condense back into chromatin.Cytokinesis is the final step of mitosis（有丝分裂）. It is the process where the cytoplasm of the parent cell is divided, resulting in two distinct daughter cells. In animal cells, this occurs through the formation of a cleavage furrow that pinches the cell in two. In plant cells, a cell plate forms along the center of the cell, leading to the formation of a new cell wall.Understanding mitosis（有丝分裂） is vital not only in biology but also in medicine and genetics. Abnormalities in mitosis（有丝分裂） can lead to various diseases, including cancer, where cells divide uncontrollably. Research into the mechanisms of mitosis（有丝分裂） has led to significant advancements in cancer treatment and therapies aimed at targeting rapidly dividing cells.In conclusion, mitosis（有丝分裂） is a critical biological process that ensures the continuity of life through cell division. By understanding its phases and significance, we gain insights into the fundamental workings of living organisms and the implications of cellular division in health and disease. As science continues to evolve, the study of mitosis（有丝分裂） remains a key area of research that holds promise for future discoveries and medical advancements.

有丝分裂是生命的基本过程，因为它是单个细胞分裂成两个相同的子细胞的方法。这个过程对于多细胞生物的生长、发育和组织修复至关重要。在有丝分裂过程中，遗传物质被复制并均匀分配，以确保每个新细胞接收父母细胞DNA的准确副本。这确保了细胞世代之间的遗传连续性和稳定性。有丝分裂的过程可以分为几个明显的阶段：前期、中期、后期和末期，然后是细胞质分裂。在前期，染色质凝缩成可见的染色体，核膜开始破裂。纺锤体开始形成，这在接下来的阶段中将起到移动染色体的关键作用。在中期，染色体在细胞的赤道平面上排列，称为中期板。这种排列至关重要，因为它确保每个子细胞将接收到每条染色体的一份副本。纺锤体附着在染色体的着丝点上，为分离做准备。随后是后期，姐妹染色单体被纺锤体拉开，朝向细胞的相对极移动。这种分离对于确保每个新细胞将具有正确数量的染色体是必不可少的。最后，在末期，分开的染色单体到达极点，核膜重新形成在每组染色体周围，这些染色体开始重新凝缩回染色质。细胞质分裂是有丝分裂的最后一步。这是父母细胞的细胞质被分割的过程，导致两个不同的子细胞。在动物细胞中，这通过形成一个切口沟将细胞挤压成两半来实现。在植物细胞中，细胞板沿细胞中心形成，导致新细胞壁的形成。理解有丝分裂不仅在生物学中至关重要，而且在医学和遗传学中也是如此。有丝分裂的异常可能导致各种疾病，包括癌症，其中细胞不受控制地分裂。对有丝分裂机制的研究已导致癌症治疗和针对快速分裂细胞的疗法的重大进展。总之，有丝分裂是一个关键的生物过程，它通过细胞分裂确保生命的延续。通过理解其阶段和重要性，我们获得了对活生物体基本运作的洞察，以及细胞分裂在健康和疾病中的影响。随着科学的不断发展，对有丝分裂的研究仍然是一个关键的研究领域，蕴含着未来发现和医学进步的希望。