polygene

简明释义

英[ˈpɒlɪdʒiːn]美[ˈpɑliˌdʒin]

n. [遗] 多基因

英英释义

单词用法

同义词

反义词

例句

1.This paper recounted the genetic mechanism of disease resistance and the progress of single gene and polygene hereditary diseases. The probable way in resistance disease breeding has been approached.

本文从抗病遗传机制出发，叙述了单基因与多基因遗传病研究进展，探讨了抗病育种的可能途径。

2.The polygene system which controls quantitative trait was generally studied as a whole for a long time. Average and variance were used to reflect the heredity of quantitative trait.

长期以来，通常将控制数量性状的多基因体系作为一个整体来研究，用平均值和方差来反映数量性状的遗传特征。

3.The result indicated that the spike character of the translocation lines was controlled by polygene that were located in different chromosomes.

结果表明，易位系的穗部性状有位于不同染色体上的多个基因控制。

4.This paper recounted the genetic mechanism of disease resistance and the progress of single gene and polygene hereditary diseases. The probable way in resistance disease breeding has been approached.

本文从抗病遗传机制出发，叙述了单基因与多基因遗传病研究进展，探讨了抗病育种的可能途径。

5.Result Nasopharyngeal carcinoma is polygene heredity disease, which is affected by heredity and environment together.

结果鼻咽癌是遗传因素与环境因素共同作用的多基因遗传病。结论鼻咽癌可能与遗传因素有关。

6.Wrong tooth adds up to deformation is polygene hereditary disease, often behave familial and genetic tendency.

错牙合畸形是多基因遗传病，常表现家族遗传倾向。

7.The study of the role of polygene 多基因 interactions in complex traits is gaining momentum in genetics.

在遗传学中，研究多基因交互作用在复杂性状中的作用正在获得动力。

8.Researchers found that a certain polygene 多基因 contributes to the increased risk of heart disease.

研究人员发现某个多基因会增加心脏病的风险。

9.Understanding how polygene 多基因 inheritance works can help in predicting genetic disorders.

理解多基因遗传是如何运作的可以帮助预测遗传疾病。

10.The effects of polygene 多基因 traits on agricultural yield are being researched extensively.

对多基因性状对农业产量影响的研究正在广泛进行。

11.Certain behaviors may be influenced by polygene 多基因 factors, as indicated by recent psychological studies.

最近的心理学研究表明，某些行为可能受到多基因因素的影响。

作文

In the field of genetics, the concept of a polygene (多基因) plays a crucial role in understanding the inheritance of complex traits. Unlike single-gene traits, which are determined by one specific gene, polygenes are responsible for traits that are influenced by multiple genes, each contributing a small effect. This complexity makes it challenging to predict how these traits will be expressed in an individual. For example, human height is a classic case of a trait governed by polygenes. Numerous genes contribute to the overall height, and their interactions with environmental factors such as nutrition and health further complicate the picture. The study of polygenes has significant implications in various fields, including agriculture, medicine, and evolutionary biology. In agriculture, understanding how polygenes influence traits like crop yield or disease resistance can lead to better breeding strategies. By selecting plants with favorable combinations of polygenes, farmers can enhance the desirable traits in future generations, ultimately improving food security. In medicine, the understanding of polygenes is essential for unraveling the genetic basis of complex diseases such as diabetes, heart disease, and certain types of cancer. These conditions are not caused by a single gene but rather by the cumulative effects of many genes, along with lifestyle and environmental factors. Identifying the specific polygenes involved in these diseases can aid in developing targeted therapies and personalized medicine approaches, allowing for more effective treatments tailored to an individual's genetic makeup. Furthermore, the concept of polygenes challenges traditional notions of inheritance. In classical genetics, traits were often thought to follow simple Mendelian patterns, where dominant and recessive alleles determined phenotypic outcomes. However, with the discovery of polygenes, it became clear that many traits do not adhere to these simple rules. Instead, they exhibit a continuous range of variation, known as quantitative traits. This realization has led to a paradigm shift in our understanding of heredity and evolution. Researchers utilize various statistical methods to study polygenes and their effects on traits. One common approach is genome-wide association studies (GWAS), which analyze the genomes of large populations to identify genetic variants associated with specific traits. By pinpointing the locations of polygenes, scientists can gain insights into the biological pathways that underlie complex traits and diseases. Moreover, the implications of polygenes extend beyond scientific research. They raise ethical questions regarding genetic testing and manipulation. As we gain the ability to identify and potentially edit polygenes, society must grapple with the moral implications of altering human traits. The potential for 'designer babies'—children whose genetic traits are selected or modified—raises concerns about equity, consent, and the definition of normalcy. In conclusion, the study of polygenes (多基因) is a vital area of research that enhances our understanding of complex traits and their inheritance. By recognizing the role of multiple genes in determining phenotypes, we can improve agricultural practices, develop personalized medical treatments, and rethink our approaches to genetics and ethics. As science progresses, the knowledge of polygenes will undoubtedly continue to shape various fields and challenge our perceptions of heredity and evolution.