autogenous variation

简明释义

可遗传的变异

英英释义

例句

1.In evolutionary biology, autogenous variation can lead to significant adaptations in species over time.

在进化生物学中，自生变异可以导致物种随着时间的推移发生显著适应。

2.The research team studied the effects of autogenous variation on plant growth under controlled conditions.

研究小组研究了在控制条件下，自生变异对植物生长的影响。

3.The concept of autogenous variation is crucial for understanding genetic diversity within populations.

理解种群内的遗传多样性时，自生变异的概念至关重要。

4.The study highlighted the role of autogenous variation in the development of new traits in organisms.

研究强调了自生变异在生物体新特征发展中的作用。

5.Researchers observed that autogenous variation in bacteria could enhance their resistance to antibiotics.

研究人员观察到细菌中的自生变异可能增强其对抗生素的抵抗力。

作文

In the study of biology and genetics, the concept of autogenous variation plays a crucial role in understanding how organisms adapt and evolve over time. Autogenous variation refers to the changes that occur within an organism's genetic makeup without any influence from external factors or environmental pressures. This type of variation is intrinsic to the organism itself, arising from natural processes such as mutations during DNA replication or other internal biological mechanisms.The significance of autogenous variation lies in its contribution to the diversity of traits within a population. For instance, when a mutation occurs in an individual's genetic code, it may lead to new physical characteristics or behaviors that can affect its survival and reproductive success. These variations can be beneficial, neutral, or detrimental, but they all contribute to the overall genetic diversity of the species.One of the most compelling examples of autogenous variation can be observed in the field of plant breeding. Farmers and scientists often select for specific traits in crops, leading to the development of new varieties that may be more resistant to disease or have higher yields. However, even in controlled breeding environments, spontaneous mutations can occur, resulting in autogenous variation that can lead to unexpected traits. This unpredictability can be both a challenge and an opportunity for breeders, as it may introduce unique characteristics that enhance crop resilience.Furthermore, autogenous variation is not limited to plants; it is also evident in animal populations. For example, in a population of rabbits, a mutation might result in a new fur color. If this trait provides better camouflage from predators, those rabbits may have a higher chance of survival and reproduction, thereby passing on the mutation to future generations. Over time, this process can lead to significant changes in the population, driven entirely by autogenous variation.In addition to its role in evolution, autogenous variation also has implications for conservation biology. Understanding the genetic diversity within a species is vital for effective conservation strategies. Populations with high levels of autogenous variation are generally more resilient to changes in their environment, as they possess a wider range of genetic traits that may help them adapt to new challenges. Conversely, populations with low genetic diversity may struggle to survive in the face of environmental changes, making them more vulnerable to extinction.In conclusion, autogenous variation is a fundamental concept in biology that highlights the importance of intrinsic genetic changes within organisms. It plays a critical role in the adaptation and evolution of species, impacts agricultural practices, and informs conservation efforts. By studying autogenous variation, scientists can gain valuable insights into the mechanisms of evolution and the preservation of biodiversity. As we continue to explore the complexities of genetic variation, it becomes increasingly clear that understanding these intrinsic changes is essential for both the advancement of science and the sustainability of our planet.

在生物学和遗传学的研究中，自生变异的概念在理解生物如何随时间适应和进化方面发挥着至关重要的作用。自生变异是指在没有外部因素或环境压力影响的情况下，发生在生物遗传构成中的变化。这种类型的变异是生物自身固有的，源于自然过程，如DNA复制过程中发生的突变或其他内部生物机制。自生变异的重要性在于它对种群内性状多样性的贡献。例如，当个体的遗传密码中发生突变时，可能会导致新的身体特征或行为，这会影响其生存和繁殖成功。这些变异可以是有利的、中性的或有害的，但它们都对物种的整体遗传多样性做出了贡献。一个引人注目的自生变异例子可以在植物育种领域观察到。农民和科学家常常选择作物中的特定性状，从而开发出可能更抗病或产量更高的新变种。然而，即使在受控育种环境中，自发突变也可能发生，导致自生变异，引入意想不到的特征。这种不可预测性既是育种者的挑战，也是机会，因为它可能引入增强作物韧性的独特特征。此外，自生变异不仅限于植物；在动物种群中也很明显。例如，在一群兔子中，突变可能导致新的毛色。如果这一特征提供了更好的伪装以躲避捕食者，那么这些兔子的生存和繁殖几率可能会更高，从而将突变传递给后代。随着时间的推移，这一过程完全由自生变异驱动，可能导致种群的显著变化。除了在进化中的作用外，自生变异对保护生物学也有影响。了解物种内部的遗传多样性对于有效的保护策略至关重要。具有高水平自生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特征，可以帮助它们适应新挑战。相反，遗传多样性低的种群在面对环境变化时可能难以生存，使它们更容易面临灭绝的风险。总之，自生变异是生物学中的一个基本概念，突显了生物体内在遗传变化的重要性。它在物种的适应和进化中发挥着关键作用，影响农业实践，并为保护工作提供信息。通过研究自生变异，科学家可以获得关于进化机制和生物多样性保护的宝贵见解。随着我们继续探索遗传变异的复杂性，越来越明显的是，理解这些内在变化对于科学的进步和我们星球的可持续发展至关重要。