pronuclear

简明释义

英[ˌproʊˈnjuːklɪər]美[ˌproʊˈnjuːklɪər]

adj. 原核的；提倡使用核电站的

英英释义

单词用法

同义词

反义词

例句

1.The relationship between cytoplasm and nucleus is the basic problem of biology, and nuclear transfer (nt) and pronuclear transplantation are the important methods to research their relations.

细胞核与细胞质的关系是生物学的基本问题，核移植和原核置换是研究核质关系的重要方法。

2.The relationship between cytoplasm and nucleus is the basic problem of biology, and nuclear transfer (nt) and pronuclear transplantation are the important methods to research their relations.

细胞核与细胞质的关系是生物学的基本问题，核移植和原核置换是研究核质关系的重要方法。

3.The basic reliable methods available to produce transgenic animal such as pronuclear microinjection has limited application by low efficiency and mosaic integration into the genome.

由于生产转基因动物的基本方法如原核注射法等普遍存在外源基因整合的低效性和随机性等问题，因而在应用中受到很大制约。

4.During the pronuclear 前核的 phase, the genetic materials from both parents come together.

在前核的阶段，来自双方父母的遗传物质结合在一起。

5.The pronuclear 前核的 stage is critical for proper genetic mixing during reproduction.

前核的阶段对生殖过程中的遗传混合至关重要。

6.The researchers focused on the role of pronuclear 前核的 genetics in embryonic development.

研究人员专注于前核的基因在胚胎发育中的作用。

7.In the study, they observed how pronuclear 前核的 formation affects the success of fertilization.

在研究中，他们观察到前核的形成如何影响受精的成功率。

8.Scientists are studying pronuclear 前核的 transfer techniques to improve cloning methods.

科学家们正在研究前核的转移技术，以改善克隆方法。

作文

The term pronuclear refers to the stage of development in fertilization where the male and female gametes, or sex cells, have fused together but before the genetic material from each has been combined. This stage is crucial in the process of embryonic development as it sets the foundation for the genetic makeup of the future organism. Understanding the pronuclear phase is essential for researchers and scientists working in the fields of reproductive biology and genetics. During the pronuclear stage, the nucleus of the sperm, known as the male pronucleus, and the nucleus of the egg, known as the female pronucleus, are distinct entities within the fertilized egg. This period lasts only a few hours but is pivotal because it is during this time that the two sets of chromosomes prepare to merge. The fusion of these pronuclei will ultimately result in the formation of a zygote, which is the first cell of a new organism. In assisted reproductive technologies, such as in vitro fertilization (IVF), understanding the pronuclear stage can help improve success rates. Doctors can observe the pronuclear development to determine the quality of the embryos. Healthy embryos will show clear signs of proper pronuclear formation, indicating that the fertilization process has occurred successfully. Moreover, abnormalities during the pronuclear stage can lead to developmental issues or failed implantation, which is why it is a focus of study in embryology. For instance, if there are too many or too few chromosomes in the pronuclear stage, it can result in conditions such as Down syndrome or other genetic disorders. The implications of pronuclear research extend beyond human reproduction. In agricultural biotechnology, scientists manipulate the pronuclear stage to create genetically modified organisms (GMOs) that can resist pests or tolerate harsh environmental conditions. By understanding how to control the pronuclear phase, researchers can introduce desirable traits into plants and animals more efficiently. Furthermore, the ethical considerations surrounding pronuclear manipulation are significant. As scientists gain more control over the genetic makeup of organisms, questions arise about the moral implications of such interventions. Should humans interfere with natural processes at the pronuclear stage? What are the long-term consequences of altering the genetic structure of living beings? These questions require careful consideration as technology advances. In conclusion, the pronuclear stage is a fundamental aspect of reproduction and genetics. Its significance in both human and agricultural contexts cannot be overstated. As research continues to evolve, a deeper understanding of the pronuclear phase will undoubtedly lead to advancements in medical science, agriculture, and ethical discussions around genetic manipulation. The study of pronuclear development holds the key to unlocking many mysteries of life itself, paving the way for innovations that could change the future of our world.

术语pronuclear指的是在受精过程中，雄性和雌性配子（或性细胞）融合后，但在每个配子的遗传物质结合之前的发育阶段。这个阶段在胚胎发育过程中至关重要，因为它为未来生物体的遗传构成奠定了基础。理解pronuclear阶段对从事生殖生物学和遗传学领域的研究人员和科学家至关重要。在pronuclear阶段，精子的细胞核被称为雄性前核，而卵子的细胞核被称为雌性前核，它们在受精卵中是独立的实体。这个时期仅持续几个小时，但至关重要，因为正是在这段时间内，两组染色体准备合并。这些前核的融合最终将导致合子形成，这是新生物体的第一个细胞。在辅助生殖技术（如体外受精）中，了解pronuclear阶段可以帮助提高成功率。医生可以观察pronuclear的发展，以确定胚胎的质量。健康的胚胎会显示出适当的pronuclear形成的明显迹象，表明受精过程已经成功发生。此外，在pronuclear阶段的异常可能导致发育问题或植入失败，这就是为什么它成为胚胎学研究的重点。例如，如果在pronuclear阶段染色体过多或过少，可能会导致唐氏综合症或其他遗传疾病等情况。pronuclear研究的影响超越人类生殖。在农业生物技术中，科学家操控pronuclear阶段以创造能够抵抗害虫或耐受恶劣环境条件的转基因生物（GMO）。通过理解如何控制pronuclear阶段，研究人员可以更有效地将所需特征引入植物和动物中。此外，围绕pronuclear操控的伦理考虑也很重要。随着科学家对生物体遗传构成的控制能力增强，关于这种干预的道德影响的问题随之而来。人类是否应该在pronuclear阶段干预自然过程？改变生物体遗传结构的长期后果是什么？这些问题在技术进步时需要仔细考虑。总之，pronuclear阶段是生殖和遗传学的基本方面。它在人类和农业背景下的重要性不容小觑。随着研究的不断发展，对pronuclear阶段的更深理解无疑将推动医学科学、农业和围绕遗传操控的伦理讨论的进步。对pronuclear发展的研究是揭开生命许多奥秘的关键，为可能改变我们世界未来的创新铺平了道路。