查询词典 Mendelian

They are often morphologically distinct from A chromosomes, being smallerand more highly heterochromatic in most cases. B chromosomes do not pair with Achromosomes, and they are inherited in a non-Mendelian way, exhibiting meiotic andmitotic instability and nondisjunction. However, B chromosome DNA is quiteidentical to the corresponding sequence on the A chromosome complement. So far afew B chromosome specific DNA sequence have been identified. Specific DNAsequences on B chromosome have been the attractive research area on Bchromosomes.

现已在千余种植物和近三百种动物中被发现。B染色体与物种中正常染色体不同：独立于整倍体基因组之外，减数分裂时不与A染色体发生联会和配对，细胞分裂后期不分离，非孟德尔遗传，富含异染色质，不含对宿主主要性状有影响的基因等。B染色体DNA的分子组成既与A染色体极为相似，具有A染色体DNA分子组成的一般特征：富含重复序列和转座成分，染色体三大功能组件DNA高度同源；又与之相区别，含有B染色体特异的DNA序列，这些DNA序列可以为探讨B染色体的起源和进化提供有价值的信息。

In order to test the practical usefulness of the prober LZF-I we conducted population investigation, paternity determination, tissue stability and applicable extent in fish and obtained following results. The probability of chance association between random individuals was 9.23×10-16,and this indicates that the LZF-I fingerprints are completely individualspecific The paternity probability was 0.999962, and it showed that the inheritance of alleles is in accord with the Mendelian Law. The LZF-I oligonucleotide fingerprinting probe was stable.It was very effective in detecting both individual and species specificities of fish.

通过对鱼类的群体实验、亲子鉴定实验、组织细胞的稳定性实验和鱼类种类的适用范围实验后，测得：(1)LZF-I DNA指纹探针属多位点寡核苷酸探针；(2)LZF-I DNA指纹探针在鱼类种群中的鉴别机率为9.23×10 E-16；(3)LZF-I DNA指纹探针在鱼类亲子鉴定实验中的父系概率为0.999962；(4) LZF-I DNA指纹探针，是一种稳定的，既具有个体识别能力，又具有一定种属特异性的、适用于鱼类DNA指纹图研究的基因指纹探针。

Genetic analysis of the mutants revealed that rice GA-deficient mutations are not transmitted as Mendelian traits to the next generation following self-pollination of F1 heterozygous plants, although GA-insensitive mutations are transmitted normally.

遗传分析表明该突变体，水稻遗传缺陷的突变是不转发给下一代孟德尔性状以下自花授粉的 F1的杂合的植物，虽然遗传不敏感突变是正常传送。

PCR , Southern blotting and selection on kanamycin medium indicated that BoCAL gene had single-sited integrated into cauliflower and conformed to the segregation of single-dominant gene by the law of Mendelian Inheitance.

PCR、Southern杂交和抗卡那霉素筛选表明，外源BoCAL基因已经转入受体植物并且是单位点插入，并且符合孟德尔单显性基因的遗传。

In particular, the documentation of rapid and extensive non-Mendelian genetic and epigenetic changes that often accompany nascent polyploidy is revealing: the resulting non-additive and novel gene expression at global, regional and local levels, and timely restoration of meiotic chromosomal behavior towards bivalent pairing and disomic inheritance may ensure rapid establishment and stabilization as well as its long-term evolutionary success.

特别是，所发现的在多倍体形成初期，快速且大量产生的非孟德尔遗传变异和表观遗传变异为相关机理的探讨提供了重要的启示。不同尺度上的基因非加性表达以及染色体二价体联会和二体遗传方式的快速建立可能对新形成多倍体的早期稳定和长期进化优势都具有重要意义。

Because microsatellite DNA accords with Mendelian inheritance and can reflect population relationship more reliability. mtDNA is extranuclear inheritance and belongs to maternal inheritance and is not superiority in population relationship analysis.

由于微卫星DNA符合孟德尔遗传规律，能够反映群体间的亲缘关系，构建的系统发育树结构可靠。mtDNA是核外遗传物质，具有母系遗传的特点，在反映群体间的亲缘关系上不具优势。

Characters controlled by the DNA of extranuclear organelles are not inherited according to Mendelian laws and are transmitted only through the female line, since only the female gametes have an appreciable amount of cytoplasm.

由于细胞质大多来自母体所产生的配子，所以由细胞核外的细胞器的 DNA 所控制的遗传性状一般只随母系而遗传，也不符合孟德尔定律。

Add to that the exceptions of half-bloods , Muggle-borns and Squibs and the temptation to analyze its hereditability in terms of Mendelian genetics becomes almost unbearable.

除此之外还有混血，麻瓜出身和哑炮，这更使运用孟德尔基因学理论分析遗传的努力变得几乎让人无法忍受（至少对于我们中间的某些人来说）。

The segregational proportions differ from the Mendelian mode in which selfed progenies of recessive individuals do not segregate.

湖北光敏感雄性不育水稻从1973年发现l'}至今已有15年f，最高世代已进入20代以上，育性仍在分离之中。

Away and away the aeroplane shot, till it was nothing but a bright spark; an aspiration; a concentration; a symbol (so it seemed to Mr. Bentley, vigorously rolling his strip of turf at Greenwich) of man's soul; of his determination, thought Mr. Bentley, sweeping round the cedar tree, to get outside his body, beyond his house, by means of thought, Einstein, speculation, mathematics, the Mendelian theory—away the aeroplane shot.

飞机越飞越远，直到它看不见了，变成了一点火星，一种热切，一种浓缩，一种象征（在 Bentley 先生看来就是这样，精神旺盛地旋转着他的 strip of turf 在格林威治），代表着男人的灵魂；代表着他的意志， Bentley 这样想着，掠过雪松，试图冲出他的身体，跃出他的屋子，依靠思想，爱因斯坦，思索，数学，孟德尔法则——飞机飞远了。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。