homologs

简明释义

英[həˈmɒl.əɡz]美[həˈmɑː.lɒɡz]

n. [生物][化学]同系物；同源染色体；相当或相同的事物（homolog 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Database search revealed that homologs of CT120 existed in different organisms from plant to animal kingdoms, which suggested that CT120 was a highly conserved gene during biological evolution.

CT120的同源物广泛存在于从植物到动物界不同物种中，提示新基因CT120在生物进化过程中高度保守。

2.To examine whether rice ice homologs function in cold acclimation via regulation of rice DREB homologs in response to cold stress, we assessed a polypeptide epitope containing an ICE-specific motif.

为了检测在寒冷条件下，水稻ice同系物是否通过调节水稻DREB的同系物来对冷胁迫的作出反应，我们鉴定了一个含有ice特异基序多肽抗原决定基。

3.A new chemical equation for the reaction of ethane with steam is suggested. It is pointed out that the steam conversion is similar to hydrocracking of methane homologs.

提出了乙烷与水蒸汽转化反应的新化学计量方程序，对已有的反应机理作了补充，指出甲烷同系物的水蒸汽转化与其加氢裂解反应的相似本质。

4.To examine whether rice ice homologs function in cold acclimation via regulation of rice DREB homologs in response to cold stress, we assessed a polypeptide epitope containing an ICE-specific motif.

为了检测在寒冷条件下，水稻ice同系物是否通过调节水稻DREB的同系物来对冷胁迫的作出反应，我们鉴定了一个含有ice特异基序多肽抗原决定基。

5.R "is a replaceable function, e. G. Acetoxy, methoxy, their acyloxy and alkoxy homologs or halo."

是取化基，如乙氧基、甲氧基及它们的环氧和烷氧同系物或卤基。

6.MIR is not homologous to any known protein, as homologs were not found in the rice or Arabidopsis genome databases, or in the EST database for other organisms.

通过对拟南芥和水稻基因组的以及其他物种EST数据库的比对，发现MIR和已知蛋白均不同源。

7.Comparative genomics allows us to analyze homologs 同源基因 across various organisms.

比较基因组学使我们能够分析各种生物中的同源基因。

8.The presence of homologs 同源物 in different species can indicate a common ancestor.

不同物种中存在的同源物可能表明一个共同的祖先。

9.In genetics, researchers often study the function of homologs 同源基因 to understand evolutionary relationships.

在遗传学中，研究人员通常研究同源基因的功能，以了解进化关系。

10.Scientists have identified several homologs 同源基因 that play crucial roles in development.

科学家们已经鉴定出几个在发育中起关键作用的同源基因。

11.The study of homologs 同源物 can provide insights into gene function and regulation.

对同源物的研究可以提供基因功能和调控的见解。

作文

In the realm of biology, the term homologs refers to genes or proteins that share a common ancestry. Understanding homologs is crucial for researchers as it provides insights into evolutionary relationships among species. For instance, when scientists study the DNA sequences of different organisms, they often identify homologs that have evolved from a common ancestor. This can help in tracing the evolutionary pathways and understanding how certain traits have been conserved or modified over time.The concept of homologs can be divided into two main types: orthologs and paralogs. Orthologs are homologs that diverged due to speciation events, meaning they are found in different species but originate from a common ancestral gene. For example, the human gene that codes for hemoglobin has an ortholog in mice. On the other hand, paralogs are homologs that arise from duplication events within the same genome. These can evolve new functions, leading to a variety of protein functions within a single organism. The distinction between orthologs and paralogs is essential for understanding gene function and evolution.Research involving homologs has significant implications in several fields, including medicine, agriculture, and conservation biology. In medicine, identifying homologs can aid in understanding genetic diseases. For instance, if a particular gene is known to cause a disease in one species, researchers can look for its homologs in humans to investigate whether similar mechanisms are at play. This comparative approach can lead to breakthroughs in treatment and prevention strategies.In agriculture, the study of plant homologs can enhance crop improvement programs. By identifying homologs responsible for desirable traits such as drought resistance or pest tolerance, scientists can employ techniques like gene editing to develop crops that can withstand changing environmental conditions. This not only benefits food security but also contributes to sustainable agricultural practices.Moreover, conservation biology relies on understanding homologs to preserve biodiversity. By studying the homologs of endangered species, scientists can gain insights into their evolutionary history and adapt conservation strategies accordingly. It allows for the identification of critical genetic variations that must be preserved to maintain the resilience of populations against environmental changes.In conclusion, the concept of homologs is a fundamental aspect of biological research that bridges the gap between genetics and evolutionary biology. By studying homologs, scientists can uncover the mysteries of life’s diversity and complexity. Whether it is through understanding disease mechanisms, enhancing agricultural productivity, or conserving endangered species, the implications of homologs are vast and impactful. As research continues to advance, the knowledge gained from studying homologs will undoubtedly play a pivotal role in shaping our understanding of biology and improving our world.

在生物学领域，术语同源物指的是共享共同祖先的基因或蛋白质。理解同源物对研究人员至关重要，因为它提供了物种之间进化关系的见解。例如，当科学家研究不同生物的DNA序列时，他们通常会识别出从共同祖先演变而来的同源物。这有助于追踪进化路径，并理解某些性状是如何在时间中被保留或修改的。同源物的概念可以分为两种主要类型：直系同源物和旁系同源物。直系同源物是由于物种形成事件而分歧的同源物，这意味着它们存在于不同物种中，但起源于共同的祖先基因。例如，编码血红蛋白的人类基因在小鼠中有一个直系同源物。另一方面，旁系同源物是由于同一基因组内的复制事件而产生的同源物。这些可以发展出新的功能，导致单个生物体内出现多种蛋白质功能。直系同源物和旁系同源物之间的区别对于理解基因功能和进化至关重要。涉及同源物的研究在医学、农业和保护生物学等多个领域具有重要意义。在医学中，识别同源物可以帮助理解遗传疾病。例如，如果已知特定基因在一种物种中引起疾病，研究人员可以寻找其在人类中的同源物以调查是否存在类似机制。这种比较方法可以带来治疗和预防策略的突破。在农业中，研究植物同源物可以增强作物改良计划。通过识别负责耐旱或抗虫害等优良性状的同源物，科学家可以采用基因编辑等技术开发能够抵御环境变化的作物。这不仅有利于粮食安全，还促进可持续农业实践。此外，保护生物学依赖于理解同源物来保护生物多样性。通过研究濒危物种的同源物，科学家可以深入了解它们的进化历史，并相应调整保护策略。这使得识别必须保留的关键遗传变异成为可能，以维持种群对环境变化的韧性。总之，同源物的概念是生物研究的基础方面，连接了遗传学和进化生物学。通过研究同源物，科学家可以揭示生命多样性和复杂性的奥秘。无论是通过理解疾病机制、提高农业生产力，还是保护濒危物种，同源物的影响都是广泛而深远的。随着研究的不断进展，从研究同源物中获得的知识无疑将在塑造我们对生物学的理解和改善我们的世界中发挥关键作用。