haploidy

简明释义

英[ˈhæplɒɪdɪ]美[ˈhæpˌlɔɪdi]

n. 仅有一个染色体；单倍体

英英释义

单词用法

同义词

反义词

例句

1.In contrast, haploidy seems less compatible with development in mammals.

相反的，哺乳动物的单倍体似乎与发育的兼容性较差。

2.The polyploidy cell masses and the haploidy cells appeared in the tissue cultures will not result in the hereditary variability and the changes of the character in the original diploid species.

组织培养中出现的多倍性细胞团和单倍性细胞，不会引起原二倍体物种的遗传性变异和性状变化。

3.To overcome this problem, experimental induction of haploidy has been used in fish.

为了解决这个问题，在鱼类中用实验手段诱导了单倍体。

4.The polyploidy cell masses and the haploidy cells appeared in the tissue cultures will not result in the hereditary variability and the changes of the character in the original diploid species.

组织培养中出现的多倍性细胞团和单倍性细胞，不会引起原二倍体物种的遗传性变异和性状变化。

5.As an efficient breeding method, haploidy breeding in potato has been attended increasingly.

单倍体育种作为一种高效的育种方法，在马铃薯育种中已越来越受到关注。

6.Diplont a diploid organism that represents the vegetative stage in life cycles in which haploidy is restricted to the gametes.

二倍体生物：代表生活史中植物体阶段的二倍体生物，其单倍体仅局限于配子体。

7.So, the technical system of anther culture in potato remains the major factor restraining haploidy breeding.

因此马铃薯花药培养技术体系仍是制约马铃薯单倍体育种的主要因素。

8.As an efficient breeding method, haploidy breeding in rapeseed has been attended increasingly.

单倍体育种作为一种高效育种方法，在油菜育种中已越来越受到关注。

9.Researchers study haploidy 单倍体状态 to understand genetic variations in organisms.

研究人员研究haploidy 单倍体状态以了解生物体中的遗传变异。

10.The concept of haploidy 单倍体状态 is fundamental in the field of genetics and breeding.

在遗传学和育种领域，haploidy 单倍体状态的概念是基础。

11.The phenomenon of haploidy 单倍体状态 is often observed in fungi during their life cycle.

在真菌的生命周期中，通常会观察到haploidy 单倍体状态现象。

12.In many plants, the process of gametogenesis involves a phase of haploidy 单倍体状态 that is crucial for sexual reproduction.

在许多植物中，配子发生的过程涉及一个haploidy 单倍体状态阶段，这对有性繁殖至关重要。

13.Many species exhibit haploidy 单倍体状态 as a method of reducing genetic load.

许多物种表现出haploidy 单倍体状态作为减少遗传负担的一种方法。

作文

Haploidy is a term that refers to the condition of having a single set of chromosomes in an organism. In contrast to diploidy, where organisms possess two sets of chromosomes, haploidy plays a critical role in various biological processes, particularly in reproduction and genetics. Understanding the concept of haploidy (单倍体) is essential for studying the life cycles of many organisms, including plants, fungi, and some animals. In the realm of genetics, haploidy (单倍体) is often associated with gametes, which are the reproductive cells in sexually reproducing organisms. For example, in humans, sperm and egg cells are haploid, meaning they contain only one set of chromosomes. When these gametes unite during fertilization, they form a diploid zygote, restoring the two sets of chromosomes necessary for normal development. This process highlights the importance of haploidy (单倍体) in ensuring genetic diversity and stability across generations.In addition to its significance in sexual reproduction, haploidy (单倍体) also occurs in certain organisms during their life cycles. Many plants exhibit alternation of generations, where they switch between haploid and diploid stages. For instance, in mosses, the gametophyte stage is haploid, while the sporophyte stage is diploid. This alternation allows for a greater variety of genetic combinations and adaptations to changing environments.Moreover, haploidy (单倍体) has practical applications in agriculture and biotechnology. Scientists often utilize haploid plants to create hybrids that exhibit desirable traits, such as disease resistance or increased yield. By inducing haploidy (单倍体) in crops, researchers can accelerate the breeding process and improve food security. Through techniques like anther culture, where pollen grains are cultured to develop into haploid plants, scientists can produce pure lines that are crucial for developing new varieties.From a medical perspective, understanding haploidy (单倍体) is vital for advancements in gene therapy and personalized medicine. Researchers are exploring how haploid cells can be used to model diseases and test potential treatments. By studying haploid cells, scientists can gain insights into the effects of specific genes without the complications introduced by a second set of chromosomes.In conclusion, haploidy (单倍体) is a fundamental concept in biology that encompasses various aspects of genetics, reproduction, and even agricultural practices. Its role in gamete formation, plant life cycles, and modern scientific applications underscores its significance in understanding the complexities of life. As research continues to evolve, the implications of haploidy (单倍体) will undoubtedly lead to new discoveries and innovations in multiple fields, ultimately enhancing our comprehension of biological systems and improving human health and food production.

单倍体是指生物体中具有单一染色体组的状态。与二倍体（生物体拥有两组染色体）相对，单倍体在各种生物过程中，尤其是在繁殖和遗传学中发挥着重要作用。理解haploidy（单倍体）的概念对于研究许多生物体的生命周期至关重要，包括植物、真菌和一些动物。在遗传学领域，haploidy（单倍体）通常与配子相关，即在有性生殖生物中产生的生殖细胞。例如，在人类中，精子和卵子是单倍体的，这意味着它们只包含一组染色体。当这些配子在受精过程中结合时，它们形成一个二倍体合子，恢复了正常发育所需的两组染色体。这一过程突显了haploidy（单倍体）在确保遗传多样性和稳定性方面的重要性。除了在有性繁殖中的重要性外，haploidy（单倍体）还在某些生物的生命周期中出现。许多植物表现出世代交替的现象，在这一过程中，它们在单倍体和二倍体阶段之间切换。例如，在苔藓中，配子体阶段是单倍体，而孢子体阶段是二倍体。这种交替允许更大范围的遗传组合和适应变化环境的能力。此外，haploidy（单倍体）在农业和生物技术中也有实际应用。科学家们常常利用单倍体植物来创造具有理想特征的杂交品种，如抗病性或高产量。通过诱导haploidy（单倍体）在作物中，研究人员可以加速育种过程，提高粮食安全。通过如花粉培养等技术，科学家可以生产出纯系，这对于开发新种类至关重要。从医学的角度来看，了解haploidy（单倍体）对基因治疗和个性化医疗的发展至关重要。研究人员正在探索如何使用单倍体细胞来模拟疾病和测试潜在治疗方案。通过研究单倍体细胞，科学家可以在没有第二组染色体引入的复杂情况下深入了解特定基因的影响。总之，haploidy（单倍体）是生物学中的一个基本概念，涵盖了遗传学、繁殖甚至农业实践的各个方面。它在配子形成、植物生命周期和现代科学应用中的作用突显了其在理解生命复杂性方面的重要性。随着研究的不断发展，haploidy（单倍体）的影响无疑将导致多个领域的新发现和创新，最终增强我们对生物系统的理解，并改善人类健康和食品生产。