查询词典 sex chromosome

Androgen receptor gene located on the X chromosome was first found as a susceptibility gene of AGA. Further more, the sex-determining gene located on the Y chromosome and the hairless gene on the autosome gene were also associated with AGA.

第一个发现的雄激素性秃发易感基因-雄激素受体基因，位于X染色体上；另外，位于Y染色体上的性别决定基因、常染色体上的脱发基因等也与雄激素性秃发发病有关。

Blood samples from 23 Huacaya alpacas ,3 males and 20 females ,were used to study chromosome karyotype ,so as to provide some effective cytogenetics basis for the selectioiymprovement by crossing and disease diagnosis of alpacas ,and genetic mechanisms of sex determination. Peripheral blood lymphocyte culture was used to prepare chromosome. Methods of trypsase-EDTA and BSG (Barium hydroxide / Saline / Giemsa)were used for G-banding and C-banding respectively . The results showed as follows:Firstly , the number of diploid chromosomes was in the alpacas 2n=74,with the karyotype 74, XY and 74, XX for males and females respectively.

为了从选种、杂交改良、疾病诊断以及性别决定的遗传机制等方面为羊驼的繁育与推广提供更为有效的细胞遗传学资料，本试验采用外周血淋巴细胞培养法制备染色体，分析了23只胡阿基亚型羊驼(Huacaya alpaca，雌20只，雄3只)的染色体及其核型，并通过BSG法(Barium hydroxide／Saline／Giemsa，氢氧化钡-盐溶液-吉姆萨，也即Sumner BSG法)与胰酶-EDTA法分别对羊驼的C-分带和G-分带进行分析，结果表明：(1)羊驼二倍体染色体数目为2n=74，雄性羊驼核型为74，XY；雌性羊驼核型为74，XX。

The result is: out of 187 cases of azoospermia, 77(41.18%)patients with abnormal chromosome(number and structural aberration); heteromorphic chromosome(Y chromosome polymorphisms and pericentric inversion of 9) and 46,XX sex reversal. Out of 30 cases of severe oligospermia, 4 patients with abnormal chromosome(structural aberration and 46,XX sex reversal).

发现187例无精症患者中检出异常核型77例（41.18%）（其中46，XY，t(6；14)(p21；p13)，46，XY，t(8；12)(p21；q24)为世界首报核型），主要涉及染色体异常；染色体异态（Y染色体异态和9号染色体臂间倒位）及46，XX性反转；30例严重少精症患者中检出异常核型4例（13.33%）（结构异常和46，XX性反转）。

With this method the homomorphic chromosome pair No.10 in Bufo bufo gargarizans could be identified as sex-specific chromosomes of the ZZ/ZW-type.The Z chromosomes in all male animals replicated synchronously,but Z chromosome and W chromosome of females revealed heteromorphic replication pattern.

用这种方法我们鉴定中华大蟾蜍蜍第10对同型染色体为ZZ/ZW型性染色体，所有雄性动物两个Z染色体的复制型是完全相同的，而雌性动物的Z和W染色体显示出异型复制型。

" Turner's syndrome: Chromosomal disorder (from the presence of only one sex chromosome, X, in all or some of the body's cells) that causes abnormal sexual development in female s."

特纳氏症候群：可致女人性发育异常的染色体疾病(所有或某些体细胞中只具有1个性染色体X)。

"Resulting disorders include Down's syndrome, mental retardation, heart malformation, abnormal sexual development, malignancies, and sex-chromosome disorders (e.g., Turner's syndrome, Klinefelter's syndrome)."

所导致的疾病包括唐氏症候群、精神发育迟缓、心脏畸形、性发育异常、恶性肿瘤和性染色体异常(如特纳氏症候群、克兰费尔特氏症候群)。

DNAs from a group of sex chromosome abnormal patients〔46 XX male, 45 XO Turner's syndrome, 47 XXY klinelfter syndromes, 46 XX true hermaphrodite, 46 XY hermaphrodite, 47 XYY male, 48 XXXY male〕 was hybridized to ZFT using southern bloting method.

我们对一组性染色体异常的病人(46XX男性，46XX真两性畸形，46XY两性畸形，45XO Turner's综合症，47XXY Klinelfter综合症，47XYY男性，48XXXY男性)DNA，用ZFY探针进行了Southern印迹杂交。

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。

We first identified a neo-sex chromosome system found only in one member of a sympatric species pair in Japan.

这些特征在该物种与在太平洋中发现的先祖形式之间构成一个有效的生殖障碍。

Based on different DNA fragments between Z and W chromosome, the developed PCR method has no risk of the mistrial of those sex identification markers depended on W chromosome, and can omit extra internal control or restriction enzyme deigestion. The DNA-based spindlin gene approach can provide a rapid, exact and low cost method for sex identification in poultry.

本研究以PCR检测家禽Z与W性染色体中之纺缍体蛋白基因intron序列，以其长度的差异来鉴定家禽性别，可避免仅检测W染色体性别鉴定标记的误判，且不需再搭配内部对照，更不需结合限制酶切割法即进行家禽性别鉴定。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。