phenocopy

简明释义

英[ˈfiːnə(ʊ)kɒpɪ]美[ˈfinəˌkɑpi]

n. [遗] 拟表型（一种环境影响引起的表现型非遗传性变更）

复 数 p h e n o c o p i e s

英英释义

单词用法

同义词

反义词

例句

1.In genetics, a phenocopy can occur when an organism displays traits similar to those caused by a specific gene mutation without having the mutation itself.

在遗传学中，当一个生物体表现出与特定基因突变相似的性状而没有该突变时，就会发生表型复制。

2.By manipulating environmental factors, scientists were able to create a phenocopy of a disease in lab animals for further study.

通过操控环境因素，科学家们能够在实验动物中制造出一种疾病的表型复制以便进一步研究。

3.Farmers often rely on phenocopy effects to select crops that show desirable traits under specific growing conditions.

农民常常依赖于表型复制效应来选择在特定生长条件下表现出理想特征的作物。

4.The research team discovered that the new plant variety exhibited a phenocopy of drought resistance, allowing it to survive in arid conditions.

研究团队发现，这种新植物品种表现出对干旱的表型复制，使其能够在干旱条件下生存。

5.The phenocopy observed in the experiment helped researchers understand how environmental stressors can mimic genetic disorders.

实验中观察到的表型复制帮助研究人员理解环境压力如何模仿遗传疾病。

作文

In the realm of genetics and biology, the term phenocopy refers to a phenomenon where an organism exhibits a phenotype that is similar to another organism's phenotype due to environmental factors rather than genetic similarities. This concept is crucial for understanding how traits can be influenced by external conditions, leading to variations that may not be genetically inherited. For instance, consider a plant species that typically grows tall and leafy in its native habitat but appears stunted and sparse when grown in a nutrient-poor soil. In this case, the stunted growth is a phenocopy of the plant's normal phenotype, driven by the lack of essential nutrients rather than any changes in its genetic makeup.The study of phenocopy is significant because it highlights the importance of environmental influences on the expression of traits. Many researchers are interested in this area because it can help explain why certain traits appear in populations that do not have a shared genetic background. For example, if two different species of plants develop similar leaf shapes or colors in response to similar environmental pressures, these adaptations could be considered phenocopies. This understanding can lead to insights in fields such as agriculture, conservation biology, and evolutionary studies.Moreover, the concept of phenocopy has implications in the field of medicine. Certain diseases may present with similar symptoms due to environmental triggers rather than genetic predispositions. For instance, two individuals may show similar physiological responses to a particular toxin, leading to a phenocopy of a disease state, even though their genetic backgrounds are entirely different. Recognizing this can aid in diagnosis and treatment plans, as it emphasizes the need to consider environmental factors alongside genetic ones.In educational settings, teaching students about phenocopy can foster a deeper appreciation for the interplay between genetics and the environment. It encourages critical thinking about how organisms adapt to their surroundings and the various factors that contribute to their development. By exploring real-world examples of phenocopy, such as how animals change color in response to temperature or how plants adapt to drought conditions, students can better grasp the complexities of biological systems.In conclusion, the term phenocopy encapsulates the intricate relationship between genetics and environmental influences. By studying this phenomenon, scientists can uncover the underlying mechanisms that drive phenotypic variation, leading to advancements in various fields. Understanding phenocopy not only enriches our knowledge of biological diversity but also enhances our ability to address challenges in health, agriculture, and conservation. As research continues to evolve, the significance of phenocopy will undoubtedly remain a focal point in the exploration of life sciences.

在遗传学和生物学领域，术语表型复制指的是一种现象，其中一个生物体表现出与另一个生物体相似的表型，这种相似是由于环境因素而非遗传相似性造成的。这个概念对于理解特征如何受到外部条件的影响，从而导致可能并非遗传继承的变异至关重要。例如，考虑一种植物物种，它在其原生栖息地中通常生长得高大茂盛，但在营养贫乏的土壤中生长时却显得矮小稀疏。在这种情况下，矮小的生长是该植物正常表型的表型复制，这是由缺乏必要营养素所驱动，而不是其遗传构成的任何变化。对表型复制的研究是重要的，因为它突出了环境对特征表现的影响。许多研究人员对这一领域感兴趣，因为它可以帮助解释为什么某些特征出现在没有共同遗传背景的种群中。例如，如果两种不同的植物在面对类似的环境压力时发展出相似的叶形或颜色，那么这些适应可以被视为表型复制。这种理解可以为农业、保护生物学和进化研究等领域提供见解。此外，表型复制的概念在医学领域也有重要意义。某些疾病可能由于环境诱因而呈现出相似的症状，而不是遗传倾向。例如，两个个体可能对某种毒素表现出相似的生理反应，从而导致疾病状态的表型复制，即使他们的遗传背景完全不同。认识到这一点可以帮助诊断和治疗计划，因为这强调了需要同时考虑环境因素和遗传因素。在教育环境中，教学生关于表型复制的知识可以培养他们对遗传学和环境之间相互作用的更深刻理解。这鼓励对生物体如何适应其环境以及导致其发展的各种因素进行批判性思考。通过探索现实世界中表型复制的实例，例如动物如何根据温度变化颜色或植物如何适应干旱条件，学生可以更好地掌握生物系统的复杂性。总之，术语表型复制概括了遗传学与环境影响之间错综复杂的关系。通过研究这一现象，科学家可以揭示驱动表型变异的潜在机制，从而推动各个领域的进步。理解表型复制不仅丰富了我们对生物多样性的知识，还增强了我们解决健康、农业和保护挑战的能力。随着研究的不断发展，表型复制的重要性无疑将继续成为生命科学探索的焦点。