这关键区别之间染色质和有丝分裂染色体之间当在显微镜下观察时,是染色质的结构外观。虽然相间染色质显示为螺纹形结构,但有丝分裂染色体似乎是不同的棒状结构。
相间和有丝分裂是两个重要阶段细胞分裂。相间是细胞分裂的最长阶段,并且mitosisis the shortest phase of cell division. Interphase is present between two successive mitosis phases. Chromosomes present in the two stages consist of different biochemical properties. In addition, they have distinct structural differences as well.
CONTENTS
1。概述和关键差异
2。什么是相间染色质
3。什么是有丝分裂染色体
4。相似性 - 间相染色质和有丝分裂染色体
5。相间染色质与有丝分裂染色体的表格形式
6.摘要 - 间相染色质与有丝分裂染色体
什么是相间染色质?
Interphase chromatin is a thread-shaped chromosome that is present in the interphase of cell division. During interphase, chromatin appears diffused and unorganized. Hence, they are not clearly visible. These thread-shaped structures are present at the interphase for a longer time accumulating nutrients, synthesizing proteins, and generating new organelles.
这generation of new organelles helps in replicating DNA. At the end of the interphase, the cell becomes ready to process into the mitotic stage. At this level, significant changes take place in the interphase chromatin. The most visible change is the condensation process. Interphase chromatin undergoes different changes at three sub-stages of interphase. They areG1相,S相和G2相。Condensation occurs at G2 phase. During condensation, an SMC protein known ascondensin在不同位置与单个相间染色质结合,将染色质扭转为不同的线圈和LOPS。这使得中染色质变成不同的棒状结构,后来将进入有丝分裂。
什么是有丝分裂染色体?
有丝分裂染色体是细胞分裂的有丝分裂阶段中存在的不同棒状的高度凝结染色体。由于形状和凝结量,有丝分裂染色体非常不同。这发生在细胞周期的相间,与SMC蛋白的Condensin参与。有丝分裂染色体将在有丝分裂的四个子阶段下经历不同的生化变化。它们是前期,中期,后期和末期。
在有丝分裂阶段,有丝分裂染色体附着在称为有丝分裂纺锤体的结构上。有丝分裂染色体在中期板上对齐。微管与衬里有丝分裂染色体的中心体连接。在后期,有丝分裂染色体(姐妹染色体)均匀分裂。接下来,它们向相反的杆子移动。在末期期间,新细胞含量在两端开始形成,形成两个新细胞,然后形成细胞因子。
相间染色质和有丝分裂染色体之间有什么相似之处?
- 相间染色质和有丝分裂染色体是染色体的类型。
- 两种类型都涉及细胞周期。
- 它们由DNA组成
- 两种类型对于多细胞生物的生长和繁殖至关重要。
What is the Difference Between Interphase Chromatin and Mitotic Chromosomes?
相间染色质和有丝分裂染色体之间的关键差异在于,相间染色质显示为螺纹形结构,而有丝分裂染色体则显示为不同的棒状结构。此外,相间染色质素的凝结较少,而有丝分裂染色体则大量凝结。
以下信息图列出了与表格形式的相间染色质和有丝分裂染色体之间的差异,以与并排比较。
摘要 - 间相染色质与有丝分裂染色体
间期染色质出现线状结构ures with less condensation. Mitotic chromosomes appear as distinct rod-shaped structures, and they are heavily condensed. Both interphase chromatin and mitotic chromosomes are essential for the cycle of cell division. Both types undergo different biochemical changes relative to their functions. So, this is the summary of the difference between interpahse chromatin and mitotic chromosomes.
参考:
1。“染色体。”大自然教育易碎,自然出版小组。
2. Batty,Paul和Daniel W. Gerlich。“Mitotic Chromosome Mechanics: How Cells Segregate Their Genome。”细胞生物学的趋势,Elsevier当前趋势。
图片提供:
1。“染色质组织的基本单位是核小体,其中包括147 bp的DNA包裹AR” Sha,K。和Boyer,L。A.多能细胞的染色质特征(2009年5月31日),STEMBOOK,编辑。干细胞研究界,StemBook(CC由3.0)通过Commons Wikimedia
2.“”有丝分裂示意图-en”原始:JPABLO CAD和JULIANA ORIOTIOTLANSLATION:宗教作品:M3.Dahl -(CC BY-SA 3.0)通过Commons Wikimedia
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