diploid

简明释义

英[ˈdɪplɔɪd]美[ˈdɪplɔɪd]

adj. 双倍的；倍数的；双重的

n. [遗] 二倍体；倍数染色体

英英释义

单词用法

同义词

反义词

例句

1.Nutritional composition in muscle of tetraploid loach, diploid loach and Paramisgurnus dabryanus were determined by using conventional method.

利用常规肌肉营养分析方法测定了四倍体泥鳅、二倍体泥鳅和大鳞副泥鳅的肌肉营养成分。

2.Objective to explore the cellular response of human senescent diploid fibroblasts (2bs) to the DNA damage caused by methyl methanesulfonate (MMS).

目的观察衰老的人胚肺二倍体成纤维细胞(2bs)对烷化剂甲磺酸甲酯(MMS)诱导的DNA损伤的应答。

3.Results: The adhere rate of VSMCs which were seeded on PHB was 77%, and the cells seeded on PHB grew well and were confirmed as diploid cells with FCM.

结果：兔血管平滑肌细胞在PHB膜片上粘附率为77％，细胞增殖符合细胞的生长曲线，在PHB三维微孔支架上生长情况良好，并被证实为二倍体细胞。

4.Autotetroploid rice has double genome compared with diploid rice.

同源四倍体水稻是二倍体水稻染色体加倍形成的。

5.Results: The adhere rate of VSMCs which were seeded on PHB was 77%, and the cells seeded on PHB grew well and were confirmed as diploid cells with FCM.

结果：兔血管平滑肌细胞在PHB膜片上粘附率为77％，细胞增殖符合细胞的生长曲线，在PHB三维微孔支架上生长情况良好，并被证实为二倍体细胞。

6.In vitro of ovules in 7 cross combination between diploid and tetraploid cultivars of grape were studied in this experiment.

对7个葡萄二倍体与四倍体杂交组合的胚珠进行离体培养研究。

7.Almost all of the animals and more than half of the higher plants are diploid.

几乎全部的动物和过半数的高等植物都是二倍体。

8.The sensitive index would increase and population decline would be speeded up as the increase of lethal equivalents per diploid.

随着二倍体致死当量的增加，灵敏度指数也升高，种群的衰退速度加快。

9.This is the first report on production of diploid somatic hybrid plants between citrus with its related genus via symmetric fusion.

这是柑橘属间对称融合再生二倍体叶肉亲本类型植株的首例报道。

10.In humans, somatic cells are typically diploid 二倍体, containing two sets of chromosomes.

在人类中，体细胞通常是二倍体 diploid，含有两套染色体。

11.During fertilization, a haploid sperm and a haploid egg combine to form a diploid 二倍体 zygote.

在受精过程中，一个单倍体精子和一个单倍体卵子结合形成一个二倍体 diploid 受精卵。

12.Most plants exhibit diploid 二倍体 characteristics in their vegetative parts.

大多数植物在其营养部分表现出二倍体 diploid 特征。

13.In a diploid 二倍体 organism, one allele is inherited from each parent.

在一个二倍体 diploid 生物中，每个基因型的等位基因分别来自父母。

14.The diploid 二倍体 state is crucial for maintaining genetic diversity.

保持遗传多样性对二倍体 diploid 状态至关重要。

作文

In the study of genetics, the term dihaploid refers to a cell or organism that contains two complete sets of chromosomes, one from each parent. This characteristic is crucial for the process of sexual reproduction in many organisms, including humans. The concept of dihaploid is foundational in understanding how traits are inherited and how genetic diversity is maintained within a population. To delve deeper into this concept, we must first understand what chromosomes are. Chromosomes are long strands of DNA wrapped around proteins, which carry the genetic information necessary for the growth, development, and functioning of living organisms. In humans, for instance, there are 46 chromosomes in total, organized into 23 pairs. Each pair consists of one chromosome inherited from the mother and one from the father, making the human genome dihaploid. The significance of being dihaploid lies in the process of meiosis, which is the type of cell division that produces gametes—sperm and eggs. During meiosis, a diploid cell undergoes two rounds of division to produce four haploid cells, each containing half the number of chromosomes. When fertilization occurs, these haploid gametes combine to form a new diploid organism, restoring the full set of chromosomes. This cycle ensures that genetic information is shuffled and passed on to the next generation, promoting genetic variation. Moreover, understanding dihaploid organisms helps us explore the principles of inheritance as described by Gregor Mendel. Mendel’s experiments with pea plants revealed how traits are inherited through dominant and recessive alleles. In a dihaploid organism, the presence of two alleles for each trait allows for the possibility of different combinations, leading to various phenotypes. This is why siblings can resemble each other but also have distinct differences. Additionally, the concept of dihaploid is not limited to animals; it also applies to plants and fungi. For example, flowering plants typically exhibit a dihaploid phase during their life cycle. The alternation of generations in plants involves a diploid sporophyte stage that produces haploid spores, which can develop into gametophytes. These gametophytes then produce gametes that fuse to form a new diploid sporophyte, continuing the cycle. In conclusion, the term dihaploid encapsulates a fundamental aspect of biology that underpins the complexity of life. It highlights the importance of genetic diversity and the mechanisms through which traits are passed from one generation to the next. By studying dihaploid organisms, scientists can gain insights into evolution, heredity, and the intricate web of life that connects all living beings. Understanding this concept not only enhances our knowledge of genetics but also enriches our appreciation for the diversity of life on Earth.

在遗传学研究中，术语dihaploid指的是含有两套完整染色体的细胞或生物，一个来自每个父母。这一特征对于许多生物（包括人类）的有性生殖过程至关重要。dihaploid的概念是理解性状如何遗传以及如何在种群中维持遗传多样性的基础。 要深入了解这个概念，我们必须首先理解什么是染色体。染色体是缠绕在蛋白质周围的长DNA链，携带着生命体生长、发育和功能所必需的遗传信息。例如，在人类中，总共有46条染色体，组织成23对。每对由一个来自母亲的染色体和一个来自父亲的染色体组成，使得人类基因组为dihaploid。 成为dihaploid的重要性在于减数分裂的过程，这是产生配子的细胞分裂类型——精子和卵子。在减数分裂过程中，一个二倍体细胞经历两轮分裂，产生四个单倍体细胞，每个细胞包含一半数量的染色体。当受精发生时，这些单倍体配子结合形成新的二倍体生物，恢复完整的染色体组。这一循环确保了遗传信息的重组并传递到下一代，促进了遗传变异。 此外，理解dihaploid生物有助于我们探索孟德尔所描述的遗传原则。孟德尔对豌豆植物的实验揭示了性状是如何通过显性和隐性等位基因遗传的。在dihaploid生物中，对于每个性状存在两个等位基因的情况使得不同组合的可能性增加，从而导致各种表型。这就是为什么兄弟姐妹可能相似但也有明显差异的原因。 此外，dihaploid的概念不仅限于动物；它也适用于植物和真菌。例如，开花植物在其生命周期中通常表现出dihaploid阶段。植物中的世代交替涉及一个二倍体孢子体阶段，产生单倍体孢子，这些孢子可以发育成配子体。这些配子体然后产生配子，结合形成新的二倍体孢子体，继续这一循环。 总之，术语dihaploid概括了生物学的一个基本方面，支撑着生命的复杂性。它突出了遗传多样性的重要性以及性状如何从一代传递到下一代的机制。通过研究dihaploid生物，科学家们可以获得关于进化、遗传和连接所有生物的复杂生命网络的见解。理解这一概念不仅增强了我们对遗传学的知识，还丰富了我们对地球上生命多样性的欣赏。