之后人类选择具有独特基因的动物或植物个体进行配对,使它们那些为人所需的特性变得更为普遍和显著。
Humans then chose to mate individual animals or plants that carried the particular gene in order to make the desired characteristics more common or more pronounced.
这种植物种群数量的“大爆炸”是在古代植物染色体组加倍时发生的。染色体组加倍给植物提供了大量具有新功能的基因,这些新基因又形成了新特性。
These "big bangs" in plant evolution occurred when the genomes of ancient plants duplicated, providing vast Numbers of new genes that could take on new functions and lead to new traits.
两次连击奏效了:团队报道说,细菌基因一次性中断IPK1基因的几率达到3%—100%,同时植物也具有抗除草剂特性。
The double shot worked: the bacterial gene disrupted the IPK1 gene between 3% and 100% of the time and also made the plants resistant to herbicides, the team reports.
鲜味感觉是由谷氨酸激发的产生的,它是组成蛋白质的20个氨基酸之一,但相比于植物蛋白,它更具有动物蛋白的特性。
Umami perception is stimulatedby glutamicacid, one of the 20 amino acids that make up proteins—but one that is more characteristic of animal proteins than plant ones.
真菌又称植物菌,具有植物的特性。
Epiphyte is also known as plant-bacterium; it has the characteristic of plants.
这些方法对植物寄生线虫的分类鉴定和侵染特性研究具有重要意义。
These methods were essential to the study on classification, identification and characteristics of the plant nematode.
植物由于具有螯合机制可能影响土壤的化学特性。
Plants may possibly influence soil chemistry by the possession of chelating mechanisms.
不同植物和品种,对养分数量、比例、形态的需求和利用能力具有各不相同的营养特性。
Different plants and varieties have various nutrients absorption characteristics such as in the requirement and utilization to nutrients amount, rate and forms, etc.
介绍番茄红素具有的理化特性和生理功能,植物中番茄红素的生物合成途径及其调控。
This article mainly introduced the physiochemical properties of lycopene, lycopene biosynthesis path- way and its regulation in higher plants.
寄生植物广泛分布于不同的生态环境中,并具有不同的生育习性及与寄主识别特性。
Parasitic plants are widely distributed in various ecological environments, with different growth habits and host recognition mechanisms.
金花茶不仅具有极高的观赏价值,而且还具有其他植物所没有的对人体有保健功能与药用医学价值的特性。
Golden camellia is not only rare and precious but also good for human body health, and it has been proved to have medicinal and health care functions that other plants do not have.
选择具有夜间吸收CO_2特性且吸收量高的功能植物,对于室内植物设计具有重要的意义。
To select such high absorbing capacity plants which can remove CO2 during night is important for interior plants design.
马郁兰是一种唇形花科的香草类植物,它具有医药效果并且呈现抗氧化特性。
Origanum majorana L. has been known to possess medicinal effects and exhibit antioxidative properties.
介绍了天然黄酮类化合物的种类、结构和具有的抗氧化特性;综述了国内外从植物中提取、分离方法及进展。
The paper reviews the antioxidant effect of flavonoids. The research development of extracting methods of flavonoids are introduced.
绿茶富含多元酚类,后者是给予绿茶苦涩味道的植物化学物质,具有强效的抗氧化特性。
Green tea is chock-full of polyphenols, phytochemicals with potent antioxidant properties that give green tea its bitter flavor.
各种植物蛋白膜及其复合膜具有机械强度、透气性、阻水性等优良特性,有着广阔的应用前景。
Various plant protein films and multi protein films possessed excellent properties, such as high mechanical strength, gas permeation, water resistance, etc. So they had a wide application prospect.
鲁梅克斯K-1杂交酸模是一种多年生宿根植物,1995年引入我国,因其具有多种有益于人类的生物学特性和经济价值而备受人们的关注。
Rumex Kl was a perennial plant with persistent roots. It was introduced to China in 1995. Rumex Kl attracted people's attention with its biological characters beneficial to human and economical value.
该不育系具有稳定的遗传特性,是研究木本植物雌配子体发育调控机制的极好材料。
It is an excellent material for mechanism research on the female gametophyte development of woody plants with its steady genetic characteristic of female sterility.
在干旱胁迫下,能有效提高叶片含水量,增强植物的光合特性,因此具有良好的发展前景。
Moreover, it can increase leaf relative water content (RWC) and photosynthesis characteristic while under drought stress, for which it has a promising prospect.
兰科植物具有多样的生物学特性和重要的商品特性。
Orchid species show variable biological characters and important commodity characteristics.
含植物芳香油类的化学制品具有多种治疗学特性,历史上曾在非洲、亚洲和印度使用。
The chemicals comprising essential oils in plants has a host of therapeutic properties and has been used historically in Africa, Asia, and India.
目前已发现多种植物和微生物具有合成和积累dnj的特性,其中以桑叶中的含量最高。
Today DNJ has been found in many kinds of plants and microbes especially in mulberry leaves.
目前已发现多种植物和微生物具有合成和积累dnj的特性,其中以桑叶中的含量最高。
Today DNJ has been found in many kinds of plants and microbes especially in mulberry leaves.
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