homeotic

简明释义

英[ˌhɒmiˈɒtɪk]美[ˈhoʊmiɑːtɪk]

同源异型的

英英释义

单词用法

同义词

反义词

例句

1.Studies on several floral homeotic mutants in dicots, mainly in Arabidopsis, Snapdragan and Petunia, established the ABCDE model for the determination of floral organ identities.

根据对双子叶模式植物拟南芥、金鱼草和矮牵牛遗传突变体的研究，提出了花发育的ABCDE模型。

2.Studies on several floral homeotic mutants in dicots, mainly in Arabidopsis, Snapdragan and Petunia, established the ABCDE model for the determination of floral organ identities.

根据对双子叶模式植物拟南芥、金鱼草和矮牵牛遗传突变体的研究，提出了花发育的ABCDE模型。

3.The methylation of histone H3-K27 was proved to be linked to several silencing phenomena including homeotic-gene silencing, X inactivation and genomic imprinting.

组蛋白H3第27位赖氨酸的甲基化与同源盒基因沉默、X染色体失活、基因印记等基因沉默现象有关；

4.The classical ABC model illustrated the molecular mechanism of floral development, and explained the floral organ mutants of homeotic gene.

经典的ABC模型有效地解释了花器官发育的分子机制，可以广泛地解释因同源异型基因的突变而引起的植物花器官变异。

5.Plant homeotic genes and homeobox genes are two types of the important genes encoding transcription factors involved in plant development.

植物同源异型基因及同源异型盒基因是涉及植物个体发育调节的两类重要转录因子编码基因。

6.These floral organs are specified by floral homeotic genes, as well as genes which specify the number and symmetry of floral organ.

这些器官的性质由花的“同源异型基因”决定，决定花的器官数和对称性等的基因族也在起作用。

7.The important roles of homeotic genes in the floral organ development were summarized.

主要论述了花发育过程中花器官同源异形基因及其相关基因的调控机理。

8.The study of homeotic genes has revealed how body plans are developed in various organisms.

对同源基因的研究揭示了不同生物体的身体结构是如何发展的。

9.Researchers found that mutations in homeotic genes can lead to significant changes in an organism's morphology.

研究人员发现，同源基因的突变会导致生物形态发生显著变化。

10.In fruit flies, the homeotic gene Antennapedia can cause legs to grow in place of antennae.

在果蝇中，同源基因Antennapedia可以导致腿部在触角的位置生长。

11.The concept of homeotic transformation is crucial for understanding evolutionary biology.

理解进化生物学时，同源转化的概念至关重要。

12.Scientists use homeotic mutants to study the genetic basis of development.

科学家使用同源突变体来研究发育的遗传基础。

作文

In the fascinating world of genetics, the term homeotic refers to a specific type of gene that plays a crucial role in determining the body plan of an organism during its development. These homeotic genes are responsible for ensuring that the correct structures form in the right places. For instance, they dictate whether a limb develops as a leg or an arm, and they are vital for maintaining the overall organization of an organism’s body. The discovery of homeotic genes has revolutionized our understanding of developmental biology and evolutionary processes. The concept of homeotic genes was first introduced in the context of Drosophila melanogaster, commonly known as the fruit fly. Researchers found that mutations in certain genes could lead to dramatic changes in the body structure of the flies. Some flies developed legs where their antennae should have been, a clear indication of how powerful these homeotic genes are in guiding development. This phenomenon is not restricted to fruit flies; homeotic genes are present in a wide range of organisms, including humans, which suggests a shared evolutionary heritage. Understanding homeotic genes has significant implications for evolutionary biology. The conservation of these genes across different species indicates that they play a fundamental role in the evolution of body plans. Changes or mutations in homeotic genes can lead to new anatomical features, which may provide advantages in survival and reproduction. This process, known as evolutionary developmental biology (evo-devo), explores how variations in homeotic gene expression can lead to the diversity of life forms we see today. Moreover, the study of homeotic genes extends beyond pure academic interest; it has practical applications in medicine and biotechnology. For example, understanding how these genes function can help scientists develop strategies for regenerative medicine, where the goal is to repair or replace damaged tissues. By manipulating homeotic gene expression, researchers hope to encourage cells to adopt specific identities, leading to more effective treatments for injuries or degenerative diseases. In summary, the term homeotic encapsulates a critical aspect of developmental biology, highlighting the importance of specific genes in shaping the anatomy of organisms. The insights gained from studying homeotic genes not only enhance our understanding of genetic regulation and evolutionary processes but also pave the way for innovative medical advancements. As research continues, the role of homeotic genes will undoubtedly remain a central topic in the fields of genetics, evolutionary biology, and medicine, illustrating the profound interconnectedness of life at the molecular level.

在迷人的遗传学世界中，术语homeotic指的是一种特定类型的基因，这些基因在生物体发育过程中起着至关重要的作用。homeotic基因负责确保正确的结构在正确的位置形成。例如，它们决定肢体是作为腿还是手臂发育，并且对维持生物体的整体组织至关重要。homeotic基因的发现彻底改变了我们对发育生物学和进化过程的理解。 homeotic基因的概念最早是在果蝇（Drosophila melanogaster）的研究中提出的。研究人员发现，某些基因的突变会导致果蝇身体结构发生戏剧性的变化。有些果蝇在它们的触角应该生长出腿，这是这些homeotic基因在指导发育中强大作用的明确迹象。这种现象并不仅限于果蝇；homeotic基因存在于广泛的生物体中，包括人类，这表明它们共享着共同的进化遗产。 理解homeotic基因对进化生物学具有重要意义。这些基因在不同物种间的保守性表明它们在身体计划的进化中发挥着基本作用。homeotic基因的变化或突变可能导致新的解剖特征，从而在生存和繁殖中提供优势。这个过程被称为进化发育生物学（evo-devo），探讨homeotic基因表达的变化如何导致我们今天所看到的生命形式的多样性。 此外，对homeotic基因的研究超越了纯学术兴趣；它在医学和生物技术方面也具有实际应用。例如，理解这些基因如何发挥作用可以帮助科学家制定再生医学的策略，其目标是修复或替代受损的组织。通过操纵homeotic基因表达，研究人员希望促进细胞采用特定身份，从而为创伤或退行性疾病提供更有效的治疗。 总之，术语homeotic概括了发育生物学的一个关键方面，强调了特定基因在塑造生物体解剖结构中的重要性。从研究homeotic基因中获得的见解不仅增强了我们对遗传调控和进化过程的理解，而且为创新的医学进步铺平了道路。随着研究的继续，homeotic基因的作用无疑将继续成为遗传学、进化生物学和医学领域的中心话题，展示生命在分子水平上深刻的相互关联性。