dicentric

简明释义

英[ˌdaɪˈsɛntrɪk]美[ˌdaɪˈsɛntrɪk]

adj. [细胞] 具双着丝的

英英释义

单词用法

同义词

反义词

例句

1.Objective To explore the differences between radiation-induced translocation and dicentric chromosome aberrations detected by multicolor fluorescence in situ hybridization (M-FISH) method.

目的探讨用多色荧光原位杂交(M FISH)技术检测的易位和双着丝粒染色体畸变的差异。

2.At anaphase the dicentric chromatid will form a bridge and the acentric a fragment, both of which can be scored.

在后期双著绿点染色体将形成一个桥，无著绿点染色体单体形成一断片，此两者均可记录下来。

3.Dicentric — a structurally abnormal chromosome with two centromeres.

有两个着丝粒的结构异常的染色体。

4.Objective To explore the differences between radiation-induced translocation and dicentric chromosome aberrations detected by multicolor fluorescence in situ hybridization (M-FISH) method.

目的探讨用多色荧光原位杂交(M FISH)技术检测的易位和双着丝粒染色体畸变的差异。

5.Studies have shown that dicentric chromosome formation is linked to increased cancer risk.

研究表明，双心染色体的形成与癌症风险增加有关。

6.Cytogenetic analysis revealed a high frequency of dicentric chromosomes in the exposed population.

细胞遗传学分析显示在暴露人群中，双心染色体的频率很高。

7.The detection of dicentric chromosomes can help in the assessment of genotoxic effects.

检测到双心染色体可以帮助评估基因毒性效应。

8.In radiation biology, dicentric chromosomes are used as biomarkers for exposure assessment.

在辐射生物学中，双心染色体被用作暴露评估的生物标志物。

9.The presence of dicentric chromosomes in the cell indicates potential DNA damage.

细胞中存在双心染色体表明可能存在DNA损伤。

作文

In the field of genetics, the term dicentric refers to a chromosome that has two centromeres instead of the usual one. This unusual characteristic can lead to various complications during cell division, particularly during mitosis. Understanding the implications of dicentric chromosomes is crucial for researchers studying genetic disorders and cancer. When a dicentric chromosome forms, it can create instability within the cell's genetic material, leading to the potential loss of important genes or the creation of abnormal cells. The formation of dicentric chromosomes often occurs due to chromosomal breakage and subsequent misrepair. For example, if two different chromosomes break and their fragments join together incorrectly, a dicentric chromosome may result. This phenomenon can be observed in certain types of cancers where chromosomal abnormalities are common. The presence of dicentric chromosomes can serve as a marker for genomic instability, which is a hallmark of cancer progression. Moreover, the study of dicentric chromosomes extends beyond cancer research. In the field of radiation biology, exposure to ionizing radiation can induce the formation of dicentric chromosomes. Researchers often use this knowledge to assess the biological effects of radiation on human health. By analyzing blood samples for the presence of dicentric chromosomes, scientists can estimate an individual’s exposure to radiation and its potential consequences. Additionally, dicentric chromosomes have been implicated in various genetic disorders. Their presence can disrupt normal cellular functions, leading to developmental issues or other health problems. For instance, individuals with certain chromosomal rearrangements may exhibit symptoms associated with genetic syndromes, which can be traced back to the presence of dicentric chromosomes. Understanding these connections helps geneticists develop better diagnostic tools and treatment strategies. In conclusion, the concept of dicentric chromosomes plays a significant role in genetics, cancer research, and radiation biology. Their unique structure and the consequences they impose on cellular stability make them an important focus of study. As research continues to evolve, the insights gained from understanding dicentric chromosomes will undoubtedly contribute to advancements in medical science, offering hope for improved diagnosis and treatment of various genetic conditions and diseases. The exploration of dicentric chromosomes not only enhances our understanding of genetic mechanisms but also underscores the complexity of the human genome and its response to environmental factors. By delving into the world of dicentric chromosomes, we gain a deeper appreciation for the intricacies of life at the molecular level and the potential ramifications of genetic anomalies. As we continue to explore this fascinating aspect of genetics, we pave the way for future discoveries that could transform our approach to healthcare and disease prevention.

在遗传学领域，术语dicentric指的是一种具有两个着丝粒的染色体，而不是通常的一个。这种不寻常的特征可能在细胞分裂过程中，特别是在有丝分裂期间导致各种并发症。理解dicentric染色体的影响对于研究遗传疾病和癌症的研究人员至关重要。当dicentric染色体形成时，它可能会导致细胞遗传物质的不稳定，从而潜在地丧失重要基因或产生异常细胞。dicentric染色体的形成通常是由于染色体断裂和随后的错误修复。例如，如果两个不同的染色体断裂并且它们的片段错误地结合在一起，可能会导致dicentric染色体的形成。这种现象可以在某些类型的癌症中观察到，其中染色体异常是常见的。dicentric染色体的存在可以作为基因组不稳定性的标志，而基因组不稳定性是癌症进展的一个标志。此外，dicentric染色体的研究不仅限于癌症研究。在辐射生物学领域，暴露于电离辐射可以诱导dicentric染色体的形成。研究人员常常利用这一知识来评估辐射对人类健康的生物效应。通过分析血液样本中dicentric染色体的存在，科学家可以估算个体的辐射暴露及其潜在后果。此外，dicentric染色体还与各种遗传疾病有关。它们的存在可能会干扰正常的细胞功能，导致发育问题或其他健康问题。例如，某些染色体重排的个体可能会表现出与遗传综合症相关的症状，这些症状可以追溯到dicentric染色体的存在。理解这些联系有助于遗传学家开发更好的诊断工具和治疗策略。总之，dicentric染色体的概念在遗传学、癌症研究和辐射生物学中扮演着重要角色。它们独特的结构及其对细胞稳定性施加的后果使其成为研究的重要焦点。随着研究的不断发展，理解dicentric染色体所获得的见解无疑将为医学科学的进步做出贡献，为各种遗传病和疾病的更好诊断和治疗带来希望。探索dicentric染色体不仅增强了我们对遗传机制的理解，还突显了人类基因组的复杂性及其对环境因素的反应。通过深入探讨dicentric染色体的世界，我们更加欣赏生命在分子层面上的复杂性以及遗传异常的潜在影响。随着我们继续探索这一迷人的遗传学方面，我们为未来的发现铺平了道路，这些发现可能会改变我们对医疗保健和疾病预防的看法。