allelic variation

简明释义

等位变异;

英英释义

例句

1.The study focused on the effects of allelic variation on disease susceptibility in different populations.

这项研究集中于等位基因变异对不同人群疾病易感性的影响。

2.The impact of allelic variation on agricultural traits has been widely studied.

关于等位基因变异对农业性状影响的研究已经广泛开展。

3.Understanding allelic variation is crucial for developing personalized medicine.

理解等位基因变异对于开发个性化医疗至关重要。

4.Researchers found that allelic variation in the gene could lead to varying responses to treatment.

研究人员发现，基因中的等位基因变异可能导致对治疗的不同反应。

5.Geneticists often analyze allelic variation to understand evolutionary processes.

遗传学家经常分析等位基因变异以理解进化过程。

作文

In the field of genetics, understanding the concept of allelic variation is crucial for comprehending how traits are inherited and expressed in living organisms. Allelic variation refers to the differences in the DNA sequence among individuals that occur at specific gene loci. These variations can lead to different phenotypes, or observable characteristics, within a population. For instance, consider the trait of flower color in pea plants, which was famously studied by Gregor Mendel. The variations in the alleles responsible for flower color result in different colors, highlighting how allelic variation contributes to biodiversity.The significance of allelic variation extends beyond mere physical traits; it plays a vital role in the adaptability and evolution of species. Populations with a high degree of allelic variation are often more resilient to environmental changes, as they possess a wider range of genetic options to adapt to new challenges. This genetic diversity is essential for the survival of species, as it allows for natural selection to act on varying traits, leading to evolutionary change over time.Moreover, allelic variation is a key factor in the study of human health and disease. Many diseases are influenced by genetic factors, and understanding the allelic variations associated with these conditions can aid in developing targeted treatments. For example, certain alleles may predispose individuals to conditions such as diabetes or heart disease. By studying allelic variation, researchers can identify genetic markers that help predict an individual's risk for these diseases, paving the way for personalized medicine.In agriculture, allelic variation is harnessed to improve crop yields and resistance to pests and diseases. Plant breeders utilize this genetic variation to select for desirable traits, ensuring that crops can thrive in a changing climate and meet the food demands of a growing population. The introduction of genetically modified organisms (GMOs) is one way that allelic variation is applied in practice, allowing scientists to introduce specific alleles that confer beneficial traits into plant genomes.Furthermore, conservation efforts also rely on understanding allelic variation. Protecting genetic diversity within endangered species is crucial for their survival. Conservationists monitor allelic variation to ensure that populations retain enough genetic diversity to adapt to environmental changes and avoid inbreeding depression, which can threaten the viability of small populations.In conclusion, allelic variation is a fundamental concept in genetics that impacts various fields, from evolutionary biology to medicine and agriculture. Its implications are profound, influencing how we understand biodiversity, disease susceptibility, agricultural practices, and conservation strategies. As research continues to uncover the complexities of allelic variation, it becomes increasingly clear that this genetic diversity is not only a hallmark of life but also a critical component in addressing some of the most pressing challenges facing our world today.

在遗传学领域，理解“等位基因变异”的概念对于理解特征是如何在生物体中遗传和表现出来的至关重要。“等位基因变异”指的是在特定基因位点上个体之间DNA序列的差异。这些变异可能导致种群内不同的表型或可观察特征。例如，考虑豌豆植物的花色这一特征，这一特征曾被格雷戈尔·孟德尔著名地研究。负责花色的等位基因的变异导致了不同的颜色，突显了“等位基因变异”如何有助于生物多样性。“等位基因变异”的重要性不仅仅体现在物理特征上；它在物种的适应性和进化中发挥着关键作用。具有高程度“等位基因变异”的种群通常对环境变化更具韧性，因为它们拥有更广泛的遗传选择以适应新的挑战。这种遗传多样性对于物种的生存至关重要，因为它允许自然选择作用于不同的特征，从而导致随着时间的推移而发生的进化变化。此外，“等位基因变异”也是人类健康和疾病研究的关键因素。许多疾病受到遗传因素的影响，理解与这些疾病相关的等位基因变异可以帮助开发针对性的治疗方法。例如，某些等位基因可能使个体易患糖尿病或心脏病。通过研究“等位基因变异”，研究人员可以识别出有助于预测个体罹患这些疾病风险的遗传标记，为个性化医学铺平道路。在农业中，“等位基因变异”被利用来改善作物产量以及对害虫和疾病的抵抗力。植物育种者利用这种遗传变异来选择期望的特征，确保作物能够在不断变化的气候中茁壮成长，并满足不断增长的人口对食物的需求。引入转基因生物（GMO）是“等位基因变异”在实践中应用的一种方式，允许科学家将赋予有益特征的特定等位基因引入植物基因组。此外，保护工作也依赖于对“等位基因变异”的理解。保护濒危物种的遗传多样性对于它们的生存至关重要。保护主义者监测“等位基因变异”，以确保种群保持足够的遗传多样性，以适应环境变化并避免近交衰退，这可能威胁到小种群的生存。总之，“等位基因变异”是遗传学中的一个基本概念，影响着从进化生物学到医学和农业等多个领域。它的影响深远，影响着我们对生物多样性、疾病易感性、农业实践和保护策略的理解。随着研究不断揭示“等位基因变异”的复杂性，越来越明显的是，这种遗传多样性不仅是生命的标志，也是解决当今世界面临的一些最紧迫挑战的关键组成部分。