请输入您要查询的英文单词:

 

单词 pleiotropy
释义

Definition of pleiotropy in English:

pleiotropy

noun plʌɪˈɒtrəpiplīˈätrəpē
mass nounGenetics
  • The production by a single gene of two or more apparently unrelated effects.

    〔遗传〕基因多效性,多向性

    Example sentencesExamples
    • These salutary effects of ezetimibe on statin levels presumably enhance the beneficial effects attributed to statin pleiotropy.
    • At the level of populations, the scaling of mutational effects with pleiotropy can be addressed via the neutral theory of molecular evolution.
    • If gene effects on the trait and fitness are correlated due to pleiotropy, genes of large effect on the trait will remain at much lower frequencies.
    • These studies demonstrated that performance and preference of host-plant use may be genetically associated by linkage or pleiotropy, and evolve as correlated traits.
    • In this study, three factors affecting the distribution of fixed mutational effects are evaluated: pleiotropy, drift, and stabilizing selection.

Derivatives

  • pleiotropic

  • adjective plʌɪəˈtrɒpɪkplʌɪəˈtrəʊpɪk
    Genetics
    • Similarly, mutations within the Drosophila CBP homolog have wide-ranging pleiotropic phenotypes.
      Example sentencesExamples
      • There appears to be a common logic that can be discerned behind the list of these pleiotropic changes in cell metabolism.
      • Conservation of this function in humans may explain many of the pleiotropic phenotypes of cartilage hair hypoplasia.
      • Many mutants died or showed pleiotropic defects casting doubt on the specificity of their retinal phenotype and were not included in this report.
      • Many semidwarf mutants have pleiotropic effects on traits other than culm length.
  • pleiotropism

  • noun
    Genetics
    • Pleiotropism is a hallmark of cytokines and growth factors; yet, the underlying mechanisms are not clearly understood.
      Example sentencesExamples
      • The gene exhibited pleiotropism by influencing not only oleate and linoleate, but also levels of palmitate, gadoleate, and total saturated fatty acids.
      • If the majority of mutations have large negative impacts on fitness, pleiotropism will act to increase their selective effects in nature.

Origin

1930s: from Greek pleiōn 'more' + tropē 'turning'.

Definition of pleiotropy in US English:

pleiotropy

nounplīˈätrəpē
Genetics
  • The production by a single gene of two or more apparently unrelated effects.

    〔遗传〕基因多效性,多向性

    Example sentencesExamples
    • These studies demonstrated that performance and preference of host-plant use may be genetically associated by linkage or pleiotropy, and evolve as correlated traits.
    • These salutary effects of ezetimibe on statin levels presumably enhance the beneficial effects attributed to statin pleiotropy.
    • In this study, three factors affecting the distribution of fixed mutational effects are evaluated: pleiotropy, drift, and stabilizing selection.
    • If gene effects on the trait and fitness are correlated due to pleiotropy, genes of large effect on the trait will remain at much lower frequencies.
    • At the level of populations, the scaling of mutational effects with pleiotropy can be addressed via the neutral theory of molecular evolution.

Origin

1930s: from Greek pleiōn ‘more’ + tropē ‘turning’.

随便看

 

英汉双解词典包含464360条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/21 16:34:25