再例如海星(starfish)可以通过mitosis再生出受伤的arm。 3. Asexual reproduction 对于像变形虫(amoeba)这样的单细胞生物而言,mitosis不可避免地导致reproduction的发生。 大部分真核细胞可以持续进行mitosis,周期性地分裂,因此形成了细胞周期(cell cycle)。细胞周期包括间期(interphase)和分裂期(M phase)。 一、间期(Inter...
分裂期的mitosis，从前期开始，核膜和核仁消失，染色质形成染色体，随后在中期所有染色体排列在细胞中央。在后期，染色单体分离，移向细胞两极，导致染色体数目翻倍。telophase中，染色体解螺旋，细胞核和细胞质开始重新形成。动物细胞的cytokinesis通过收缩环将细胞一分为二，而植物细胞则通过高尔基体囊泡形成细胞...
What is the purpose of mitosis in the cell cycle?A. Growth and repairB. Producing gametesC. Providing energyD. Creating genetic diversity 相关知识点: 试题来源: 解析 A **选项分析**: 1. **A. Growth and repair**(生长和修复):有丝分裂的主要功能是通过产生遗传相同的子细胞,增加体细胞数量,...
The cell cycle consists of two stages; the M phase and interphase. The majority of a cell's life is spent in interphase, which consists of G1, S, and G2 phases. After a period of growth, the cell enters the M phase of cell division. Here, the cell will undergo mitosis, which ...
细胞分裂(cell division)是生物体持续生长、更新细胞以及进行繁殖的关键过程。原核生物通过二分裂(binary fission)进行细胞分裂，而真核生物则通过有丝分裂(mitosis)这一更为复杂的过程实现细胞分裂。细胞分裂的重要性体现在多个方面。首先，它促进了多细胞生物体的生长，从受精卵到形成一个复杂的多细胞生命...
Cell Cycle MitosisBccb, General
ok, today we talk about the details about the mitosis. We have talked about the general concept of the cell cycle And we will look at theinterphasefirst. Interphase will have 3 subgroups: theG1,S, andG2 G1(gap phase 1)--During this phase, cells spent its time on growing--cells will...
What is the correct order of the cell cycle and mitosis? The interphase portion of the cell cycle includes the G1 phase (first gap phase), the S phase (synthesis phase), and the G2 phase (second gap phase). Mitosis (M phase) represents the final step in the cell cycle.The...
Watch complete video answer for “Cell Cycle || Amitosis” of Biology Class 12th. Get FREE solutions to all questions from chapter Cell Cycle and Cell Division.
Mitosis and Cell Cycle ProgressionDuring mitosis, cells orchestrate the faithful segregation of DNA and cellular material between dividing cells. Progression through mitosis requires the successful completion of the following events:(1) mitotic entry,(2) nuclear envelope break-down, chromosomeA Aurora...