性染色体

基本解释 (translations)

allosome  ·  heterosome  ·  idiochromosome  ·  ctetosome

词组短语

sex chromosome

与性染色体相关的网络例句 [注：此内容来源于网络，仅供参考]

Granulosus is further;2. In differentiation of closely relatedspecies, the changes in heterochromatin and pericentric inversions are key factors, this is wellnoted in the small chromosomes;3. A. mantzorum has well-differentiated XY type sex chromo-'.omes, the Y chromosome is mainly composed of euchromatin, but has strong C-band in themiddle of the long arm. It is suggested that the Y chromosome of A. mantzorum is in the-initial stage of sex chromosome differentiation.

结果表明：(1)四川湍蛙、理县湍蛙和棕点湍蛙之间的亲缘关系较近，而它们与棘皮湍蛙的亲缘关系较远；2）在近缘种的分化中，染色体结构异染色质的变化和臂间倒位是重要的因素之一，这在小型染色体上表现得尤为突出；四川湍蛙具有在形态上分化很明显的性染色体。C带分析表明，此性染色体主要由常染色质构成，但在其Y染色体的长臂上存在明显的中间C带，推测尚处于性染色体分化的初期阶段。

Distorting of them by type, the rate of number aberration is 9.9%, the rate of the structure aberration is 2.3% and the abnormal rate of the chromosome polymorphism diversity is 3.5%. Distorting of them by chromosome, the rate of the euchromosome aberration is 11.7% and the rate of the sex chromosome aberration is 4.0%.

其中按畸变类型分类，数目畸变率为9.9％，结构畸变率为2.3％，染色体多态性畸变率为3.5％；按染色体不同分类，常染色体畸变率为11.7％，性染色体畸变率为4.0％。

The results of the karyotype analysis indicated that the heteromorphic sex chromosomes existed in mitotic prometaphase chromosomes of the early embryos. Zchromosorne was the longest among the total of 56 chromosomes, and usually had twoconstricts at the ...

经对23个分散好、完整的分裂相的分析表明：家蚕早期胚胎有丝分裂早中期染色体中有异型性染色体存在，Z染色体是核型中最长的，通常具有亚端和亚中部次缢痕，W染色体很短，约相当干Z染色体的1／3长。

The spiny eel , belonging to Perciformes, Osteichthyes, is a kind of little freshwater fish distributed in Southern China. In 1998, Our lab detected XX/XY differentiated sex chromosomes in this specie with karyotypic analysis, and then with chromosomal binding and SC observation, we identified that its two largest metacentric chromosomes were X, Y sex chromosomes in 1999. X, Y chromosomes differ each other not only in the distribution of heterochromatin but also in their shapes, which make them could be recognized directly under the light-microscope without any banding treatment.

刺鳅，属鲈形目、刺鳅科(Perciformes，Mastacembelidae)，是广泛分布于中国南方的小型淡水鱼类。1998年，我室通过核型分析，首次发现该物种具有明显分化的异形性染色体，其性别决定类型为XX／XY型。1999年，本室通过染色体显带、精母细胞联会复合体观察，再次确认刺鳅染色体组中最大的一对中部着丝粒染色体为X、Y性染色体，两者不仅已经出现结构异染色质分布上的不同，同时在外部形态上也存在明显差异，识别特征鲜明，在光镜观察下无需显带即能清晰辨认性染色体。

From the above, the sex determination type is XY, but sex chromosome of male is XXY.

由此看出葎草的性别决定方式是XY型，但雄株的性染色体为三条即XXY，性染色体为最大染色体。

63 All are the telocentric chromosomes. The sex chromosomes ZZ in the male are subtelocentri chromosome, which are the largest chromosome pair in the whole genome.

雄性性染色体ZZ是整个染色体组中最长的一对近端着丝粒染色体；雌性的W染色体也为近端着丝粒染色体，其长度仅次于第3号常染色体。

The number of the chromosomes in Henan large tail sheep is 2n=54, the karyotypes of male and female sheep are 54, XY and 54, XX, respectively. There are 26 pairs of autosomes and 1 pair of sex-chromosome. Among 26 pairs of autosomes, 3 pairs are metacentric chromosomes, 23 pairs are telocentric chromosomes. X chromosome is the biggest subtelocentric chromosome and Y chromosome is the smallest submetacentric chromosome.

河南大尾寒羊二倍体染色体数目为2n=54，公羊核型54，XY；母羊核型54，XX.27对染色体中包括26对常染色体和1对性染色体，常染色体中有3对为中着丝粒染色体，23对为端着丝粒染色体；性染色体中，X染色体为最大的端着丝粒染色体，Y染色体为最小的中着丝粒染色体。

The data show that:(1) The chromosome number of Andrias davidianus is 2n=60.(2) The karyotype consists of macrochromosomes and microchromosomes.(3) In macrochromosomes, eight pairs are metacentric and two pairs are submetacentric.(4) Andrias davidianus has 20 pairs of microchromosomes, among which are four pairs of bi-armed chromosomes. They are No.11, No.25, No.23 and No.24. Other microchromosomes are telecentric.

结果表明：(1)中国大鲵染色体数目为2n=60；(2)染色体由大染色体和微小染色体组成，属于两型性染色体；(3)大染色体中有8对中部着丝粒染色体和2对亚中部着丝粒染色体；(4)微小染色体有20对，大多是端部着丝粒染色体，在雌性中发现了4对双臂染色体，第11、25号是亚中部着丝粒染色体，第23、24号是中部着丝粒染色体。

Compared the similarity and difference of distribution of homologous fragments on X and Y, we suggested that the sex chromosomes of spiny eel have evolved from a pair of homologous ancestral chromosomes, and during the evolution, a pericentric inversion might have occurred on the original Y chromosome, and subsequently terminal regional duplication might have followed, eventually resulting in the differentiation and formation of X and Y chromosomes, then the recombinants between sex chromosomes were repressed, so the sex chromosomes could be inherited steadily.

根据X、Y染色体上同源片段的分布的相似和相异，我们对刺鳅性染色体的分化历程进行了推测，即：刺鳅的性染色体起源于一对原始的同源染色体，通过原Y染色体上的一个明显的臂间倒位，以及染色体末端的异染色质成分的扩增，导致原始Y染色体与X染色体在染色体结构上的分化，从而抑制了X、Y性染色体之间的遗传物质的重组交换，为性染色体的稳定遗传奠定了基础。

The results are as follow:The diploid chromosome number of Taihe Silkies was 2n=78,the basic number of chromosome arms was AF=90 and the sex chromosome type was ZZ/ZW.According to the measured relative length,arm ratio and centromeric index,the first 10 pairs of macro-chromosomes are described as follows:No.1 ,9 and Z,W chromosomes were metacentrics,No.2,4,7 were submetacentrics,and No.3,6,8,10 were telocentrics.Studies on Taihe Silkies′ G-band showed that the first 10 pairs of macro-chromosomes can be divided into 29 zones and 190 bands.

结果表明：泰和乌骨鸡体细胞染色体数目2n=78，染色体基本臂数AF=90，1、9号染色体及Z、W性染色体为中央着丝粒染色体，2、4、7号染色体为亚中央着丝粒染色体，3、6、8、10号染色体为端着丝粒染色体。G带研究表明：前10对大型染色体可分为29个区，190条带。C带处理发现，所有母鸡分裂相中W性染色体都出现C带并整条深染。

与性染色体相关的网络解释 [注：此内容来源于网络，仅供参考]

allosome：异染色体;性染色体

异源多元体 allopolyploid | 异染色体;性染色体 allosome | 异位效应 allosteric effect

sex chromosome：性染色体

在这廿三对染色体当中,廿二对是与性之决定无关的,称之为体染色体(Autosome),而剩下的一对,一定是与性之决定有直接关系的,称之为性染色体(Sex chromosome).

sex chromosome, idiochromosome：性染色体

sex chromosome, idiochromosome 性染色体 | sex chromosome, idiochromosome 性染色体 | W chromosome W 染色体

sex chromosome disease：性染色体病

性染色体病(sex chromosome disease)是指由性染色体的数目增加或减少,以及性染色体部分片段的缺失或性染色体上的某些遗传物质发生改变而引起的各种疾病.

sex chromosome abnormalities：性染色体异常疾患

sex chromosome 性染色体 | sex chromosome abnormalities 性染色体异常疾患 | sex chromosome mosaic syndrome 性染色体嵌合型综合征

heterosome;sex chromosome：性染色体;副染色体;异染色体

性染色体的;异染色体的 heterosomal | 性染色体;副染色体;异染色体 heterosome;sex chromosome | 异[形]孢子囊的 heterosporangic

sex chromosome mosaic syndrome：性染色体嵌合型综合征

sex chromosome abnormalities 性染色体异常疾患 | sex chromosome mosaic syndrome 性染色体嵌合型综合征 | sex chromosomes 奇染色体

heterosome ; heterotropic chromosome：异染色体;性染色体

杂交优势 heterosis | 异染色体;性染色体 heterosome ; heterotropic chromosome | 变温动物;冷血动物 heterotherm ; poikilotherm

All of the other chromosomes are referred to as autosomes：除性染色体以外的染色体统称为常染色体

染色体 The Chromos... | 在二倍体细胞中含2条性染色体 There are 2 sex chromosomes included in the diploid... | 除性染色体以外的染色体统称为常染色体 All of the other chromosomes are referred to as autosomes.

sex chromosomes：性染色体

一般染色体染色体可分成 常染色体 (autosomes)和 性染色体(sex chromosomes)同源染色体的核形(karyotype)是相同的ychromosome 上的基因数一般来说是少於 X chromosome 的 且少有等位(alletes)