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Phenetic classification systems are based on many characters, and may also be weighted in favor of pqrticular characters.

表现型分类系统建立在许多性状上的一种分类方法,利用一些主要的性状进行分类。

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Genetic analysis showed that the green-revertible albino trait was controlled by a sin-gle recessive nucleic gene.

遗传分析发现该突变性状受一对隐性核基因控制。

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Cladistics A method of classification in which the relationships between organisms are based on selected shared characteristics.

生物体之间关系建立在有选择的性状上的分类方法。

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The drug will cause dermatatrophia, angiotelectasis, pigmentation and secondary infection if it is used for long time.

当药品性状发生改变时禁止使用。请将此药品放在儿童不能接触的地方。

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Pod length mainly showed association of its genes and highly significant dominant effect,and even superdominant effect too.

角果长性状在两个基因座上呈联合分布,显性效应均大于加性效应,且存在超显性。

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When a dihybrid is selfed, a characteristic dihybrid ratio of 9:3:3:1 is obtained in the offspring.

用这个合子自后,后代性状分离的比率为9:3:3:1。

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Darwin accepted blending inheritance, but Fleeming Jenkin calculated that as it mixed traits, natural selection could not accumulate useful traits.

达尔文承认混合遗传,但弗莱明•杰肯认为当性状混合的情况下,自然选择不能积累有益性状

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In MP method, gaps are coded as missing data, the fifth character and treated by simple indel coding method respectively.

在最大简约法中,空位分别被编码为丢失的据、第五性状和简单插入缺失编码。

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The correlations between the morphological characters and hetero-zygosity of R.philippinarum from Shanghai, Qingdao, Yantai, Xing-cheng, Dalian and Dandong were studied.

研究了中国沿岸6个群体(上海、青岛、烟台、兴城、大连、丹东)菲律宾蛤仔的形态性状之间的关系,以及与遗传变异合度间的相互关系(除上海群体)。

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Homogenous lines can be obtained in a very short time by haploidy breeding method such as microspore culture and anther culture.

摘要通过单倍体育种途径可快速获得纯合材料,增加有益性状的选择几率,加快育种进程。

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Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水溶物,用于配制真菌培养基,提供碳水化合物及氮源。

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Studies were made on the vegetative propagation coefficient and cormel's biological characters using eighth-excision in different development phase of Lycoris radiate.

摘要在红花石蒜不同生长发育期进行八分法切割繁殖,研究无性繁殖系和子球生物学性状差异性。

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(2) all of biological characters, such as cormel's fresh weight, size, height, root length, roughness and root quantities, presented 1% significant difference.

(2)不同生长发育期无性繁殖的子球鲜质量、最大直径、子球高度、根系长度、根基粗度及根系量等生物学性状均呈现1%水平极显著差异。

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The extract of Sophora japonica L. was processed by inorganic ceramic membrane, and the whole solid, effective ingredinent and flux of mebrane were examined.

用孔径为0.2μm的无机陶瓷膜对槐米提取液进行微滤,对提取液微滤前后在总固体、性状、指标性成分、膜通量等方面的变化进行对比分析。

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The characters of SP1 variation plants at maturity stage also appeared big changes.SP1 variation plants had short growing period, high seed setting rate, loose plant-type and clavated spike-type.

成熟期SP1代变异株性状也有较大变化,表现为生育期显著缩短,结实率有所提高,株型向松散趋势发展,穗型则均表现为棍棒形,株高、穗粒和千粒重的变化品种间表现不一致。

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The resistance to float relates to the attributes and conditions of the ground water, the pressure and floatage of water, the change of water level and the sudden supplement of water.

结构抗浮验算与地下水的性状、压力和浮力、下水位变化的影响因素、外补水有关。

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The content of flavanone and lactone in leaf and the leaf output were studied by randomizing block arrangement of 31 gingko female varieties (strain) and 4 staminiferous plant type single clone.

摘要采用31个银杏雌性品种和4个雄株类型的单株无性系,随机区组排列,对叶产量性状与叶产量的相关性,叶黄酮、内酯含量进行了研究。

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TED演讲(音频版) 2016年5月合集

Also, the trait spreads only with each successive generation.

其次,性状只有在不停繁衍下才会播。

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TED演讲(音频版) 2016年5月合集

How do you get your trait to spread?

如何让这个性状得以播?

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TED演讲(音频版) 2016年4月合集

What are those letters, and what do they do?

有哪些字母?它们控制什么性状

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自然历史博物馆

This means the plant keeps its offspring close.

就是说,这种植物能使后代保持亲本(优良性状)。

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VOA Special 2015年3月合集

Mr. Sabanayagam says identifying epigenomic marks is important for human studies in the future.

Sabanayagam说识别表观基因组性状对未来的人类研究来说很重要。

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我们这天 第

We learned about inherited traits in science, and rolling your tongue is one.

今天科学课上我们学性状,能卷舌就是其中之

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Newsweek

The environment in which it lives can force dormant genes into action or new traits to appear.

的环境可使休眠基因发挥作用或者产生新的性状

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TED演讲(音频版) 2016年5月合集

That's not so bad if your drive just promotes a trait, like eye color.

如果基因驱动只是改变性状, 比如眼睛颜色,可能还好。

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Crash Course 植物学篇

Alleles interact to produce traits, or the visible characteristics of an organism.

等位基因相互作用产生性状,或生物体的可见特征。

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TED演讲(音频版) 2016年5月合集

Also, even with CRISPR, it's not that easy to engineer a truly devastating trait.

另外,就算有CRISPR,想要制造个真正 可以引发灭绝的性状也不是简单的事。

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TED-Ed(视频版)

This phenomenon of selecting traits associated with youth is known as neoteny, and can be seen in many domestic animals.

这种选择与青年有关的性状的现象被称为幼态,在许多家畜中都可以看到。

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人物杂志

Its database has more than 250 breeds and varieties, plus 1,800 genetic markers for more than 150 diseases and traits.

它的数据库有250多个品种和种类,还有150多种疾病和性状的1800个标记。

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Newsweek

A genetic mutation that enables us to survive one hazard may also shackle us with a less harmful new trait.

种能使我们在恶劣环境下存活的基因变异,可能会带给我们有些小伤害的新性状

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感恩节那些事儿

Once farmers had that basic corn template, they coaxed smaller, slower changes from thousands of genes to get specific traits.

旦农民培育出玉米的雏形,他们就会从数千个基因中慢慢筛选出更具体的基因,以获得特定的性状

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TED演讲(视频版) 2017年10月合集

I think we've evolved four very broad personality types associated with the ratios of these four chemicals in the brain.

以探明人们如何显现多巴胺、血清素、雌激素和睾丸激素的性状。我相信这四种物质在大脑中的不同配比。

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英式英语科普频道

Every creature has a unique mix of traits and characteristics.

每种生物都有些独特性状和特征混合在起。

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语料库 例句

Genetic factors play a role in determining certain traits and characteristics.

因素在确定某些性状和特征方面发挥着作用。

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阿尔伯塔大学-恐龙古生物学

Bipedalism has evolved separately in humans and birds, so it is convergent trait.

双足行走在人类和鸟类中分别进化,因此它是趋同性状

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PBS趣味科普

Farmers have followed this ancient recipe for centuries: Select plants with a desired trait, cross-pollinate, pick the best offspring, and repeat.

挑选出拥有理想性状的植物,异花授粉,选出最好的后代,然后重复。

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双语版 TED-Ed 演讲精选

But if a trait isn't actively harmful, it might not get selected against, and stick around even though it isn't useful.

但是,如果某类性状不会造成太大的危害,那么它就不会被废弃,即使没有用,也会被存留。

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