ribosomal cistron

简明释义

核蛋白体顺反子

英英释义

例句

1.Researchers are studying the ribosomal cistron 核糖体基因组 to understand its role in antibiotic resistance.

研究人员正在研究ribosomal cistron 核糖体基因组以了解其在抗生素耐药性中的作用。

2.Mutations in the ribosomal cistron 核糖体基因组 can lead to severe developmental issues in organisms.

在ribosomal cistron 核糖体基因组中的突变可能导致生物体严重的发育问题。

3.The genetic analysis revealed that the mutation occurred in the ribosomal cistron 核糖体基因组, affecting protein synthesis.

基因分析显示，突变发生在ribosomal cistron 核糖体基因组中，影响了蛋白质合成。

4.The ribosomal cistron 核糖体基因组 is essential for the formation of ribosomes in all living cells.

在所有活细胞中，ribosomal cistron 核糖体基因组对于核糖体的形成是必不可少的。

5.Scientists utilized CRISPR technology to edit the ribosomal cistron 核糖体基因组 for improved growth rates in plants.

科学家们利用CRISPR技术编辑ribosomal cistron 核糖体基因组，以提高植物的生长速度。

作文

The study of genetics has revealed many fascinating aspects of how life operates at a molecular level. One of the key components in this field is the concept of the ribosomal cistron, which plays a crucial role in the synthesis of proteins. To fully understand the significance of a ribosomal cistron (核糖体基因组), we need to explore its function and importance in cellular biology.A ribosomal cistron refers to a specific segment of DNA that codes for ribosomal RNA (rRNA). Ribosomes, which are the cellular machinery responsible for protein synthesis, are composed of rRNA and proteins. The rRNA molecules are essential for the proper functioning of ribosomes, as they facilitate the translation of messenger RNA (mRNA) into polypeptides, which ultimately fold into functional proteins. Without the presence of ribosomal cistrons, cells would be unable to produce the ribosomes necessary for protein synthesis, leading to severe implications for the organism.In prokaryotic organisms, such as bacteria, the ribosomal cistron is typically found in operons, which are clusters of genes transcribed together. This arrangement allows for the coordinated expression of multiple genes, which is particularly advantageous for the efficiency of protein production. In eukaryotic organisms, the situation is slightly different, as the genes coding for rRNA are often spread out across different chromosomes and undergo more complex regulatory mechanisms. Nevertheless, the fundamental role of the ribosomal cistron remains the same: to ensure the availability of rRNA for ribosome assembly.The importance of ribosomal cistrons extends beyond mere protein synthesis. They are also involved in the regulation of cellular processes and can influence the overall growth and development of an organism. For instance, variations or mutations within these cistrons can lead to changes in rRNA structure, potentially affecting ribosome function and, consequently, protein production rates. This can have profound effects on cellular metabolism, growth rates, and even the organism's ability to respond to environmental stressors.Research into ribosomal cistrons has provided insights into evolutionary biology as well. The conservation of rRNA sequences across diverse species suggests that these cistrons have remained relatively unchanged throughout evolution, highlighting their fundamental role in life. Phylogenetic studies often utilize rRNA sequences to determine evolutionary relationships between organisms, further emphasizing the significance of the ribosomal cistron in understanding the tree of life.Moreover, advancements in biotechnology and genetic engineering have made it possible to manipulate ribosomal cistrons for various applications. For example, scientists can enhance the expression of specific rRNA genes to increase ribosome production in engineered strains of bacteria, which can be useful in producing large quantities of proteins for pharmaceuticals or industrial enzymes. This manipulation of ribosomal cistrons exemplifies the practical implications of understanding their function and regulation.In conclusion, the ribosomal cistron is a fundamental component of cellular biology that serves as the blueprint for ribosomal RNA production. Its role in protein synthesis, regulation of cellular processes, and evolutionary significance cannot be overstated. As research continues to uncover the complexities of genetic regulation, the study of ribosomal cistrons will undoubtedly remain a vital area of focus, with implications for both basic science and applied biotechnology. Understanding this concept not only enhances our knowledge of molecular biology but also opens doors to innovative solutions in medicine and industry.

遗传学的研究揭示了生命在分子层面上运作的许多迷人方面。其中一个关键组成部分是核糖体基因组的概念，它在蛋白质合成中发挥着至关重要的作用。要充分理解核糖体基因组（ribosomal cistron）的重要性，我们需要探讨它在细胞生物学中的功能和重要性。核糖体基因组是指编码核糖体RNA（rRNA）的特定DNA片段。核糖体是负责蛋白质合成的细胞机器，由rRNA和蛋白质组成。rRNA分子对于核糖体的正常功能至关重要，因为它们促进信使RNA（mRNA）翻译为多肽，最终折叠成功能性蛋白质。如果没有核糖体基因组的存在，细胞将无法产生合成蛋白质所需的核糖体，从而对生物体造成严重影响。在原核生物（如细菌）中，核糖体基因组通常位于操纵子中，即一起转录的基因簇。这种排列方式允许多个基因的协调表达，这对于提高蛋白质生产效率特别有利。在真核生物中，情况略有不同，因为编码rRNA的基因往往分散在不同的染色体上，并经历更复杂的调控机制。然而，核糖体基因组的基本作用仍然相同：确保rRNA的可用性以进行核糖体组装。核糖体基因组的重要性不仅仅局限于蛋白质合成。它们还参与细胞过程的调节，并能影响生物体的整体生长和发育。例如，这些基因组内的变异或突变可能导致rRNA结构的变化，进而影响核糖体的功能，因此也会影响蛋白质生产速率。这可能对细胞代谢、增长速率甚至生物体应对环境压力的能力产生深远影响。对核糖体基因组的研究为进化生物学提供了见解。跨多种物种的rRNA序列的保守性表明，这些基因组在整个进化过程中保持相对不变，突显了它们在生命中的基本作用。系统发育研究通常利用rRNA序列来确定生物体之间的进化关系，进一步强调了核糖体基因组在理解生命之树中的重要性。此外，生物技术和基因工程的进步使得操纵核糖体基因组成为可能，以应用于各种用途。例如，科学家可以增强特定rRNA基因的表达，以增加工程细菌株中核糖体的生产，这对于大规模生产药物或工业酶的蛋白质非常有用。这种对核糖体基因组的操纵例证了理解其功能和调控的实际意义。总之，核糖体基因组是细胞生物学的基本组成部分，作为核糖体RNA生产的蓝图。它在蛋白质合成、细胞过程调节和进化意义方面的作用不容小觑。随着研究不断揭示遗传调控的复杂性，核糖体基因组的研究无疑将继续成为一个重要的关注领域，对基础科学和应用生物技术都有深远的影响。理解这一概念不仅增强了我们对分子生物学的知识，也为医学和工业中的创新解决方案打开了大门。