假染色体

The fragment size can be amplified by 295 bp through the primer, in order to prevent false positive from appearing, a pair of internal control primers C34 is designed through the invention according to a bull autosome 3 reported sequence, the fragment size is amplified by 208bp, dual PCR amplification is performed to single bull sperm through the two pairs of primers, and then the final evaluation is performed to the sperm separation purity according to the statistical analysis to the detection result.

本发明提供了一种检测X、Y精子分离纯度的引物，该引物是针对牛Y染色体上性别决定基因Sry通过PCR错配技术设计而成，通过该引物可扩增片段大小为295bp，为了防止假阳性出现，本发明根据牛3号常染色体报道序列设计了一对内标引物C34，扩增片段大小为208bp，通过上述两对引物对单个牛精子进行双重PCR扩增，然后根据对检测结果的统计分析，对分离精子纯度做出最终评价。

Homology search of genomic DNA can reveal pseudogene sequences, and some properties of pseudogenes such as population, distribution, and homology family can be examined.

通过序列同源性搜索，可以收集基因组中假基因的群体特性、染色体分布和同源家族等特性。

The wild wheat with its small 14-chromosome grain s to make Emmer, a larger 28-chromosome grain that scattered in the wind.

野生小麦属飘散在风中的有14个染色体的小颗粒，它与具有14个染色体的假升麻草杂交变成了二粒穗小麦，即飘散在风中具有28个染色体的较大颗粒，

The wild wheat with its small 14-chromosome gra in s to make Emmer, a larger 28-chromosome gra in that scattered in the w in d.

野生小麦属飘散在风中的有14个染色体的小颗粒，它与具有14个染色体的假升麻草杂交变成了二粒穗小麦，即飘散在风中具有28个染色体的较大颗粒，

The wild wheat with its small 14-chromosome grains to make Emmer, a larger 28-chromosome grain that scattered in the wind .

野生小麦属飘散在风中的有14个染色体的小颗粒，它与具有14个染色体的假升麻草杂交变成了二粒穗小麦，即飘散在风中具有28个染色体的较大颗粒，

Emmer crossed with another 14-chromosome goat grass to make bread wheat, an even plumper 42- chromosome grain that did not scatter in the wind, but must be planted.

它与另外具有14个染色体的假升麻草杂交便生成我们做面包的饱满颗粒，但它必须人工加以种直

Cases of the abnormal sex differentiated diseases in children were presented. Among them, there were 4 cases of Turner's syndrome, 1 Klinefelter's syndrome, 9 female pseudohermaphroditism, 2 male pseudohermaphroditism, and 4 true hermaphroditism.

本文报道小儿性分化异常疾病20例(包括先天性卵巢发育不全综合征4例、先天性睾丸发育不全综合征1例、女性假两性畸型9例、男性假两性畸型2例、真两性畸型4例)，对上述病例进行了细胞染色体核型分析，同时作了口腔上皮细胞性染色质、中性粒细胞核鼓植体及尿17酮类固醇、17羟类固醇的检查。

Five fetuses were diagnosed with female pseudohermaphroditism (21-hydroxylase deficiency in 3 and urorectal septum malformation sequence in 2). Four fetuses were diagnosed with male pseudohermaphroditism (1 with steroid sulfatase deficiency, 1 with presumed camptomelic dysplasia, and 2 undetermined).

在这16个胎儿中有5个被诊断为女性假两性畸形（其中3个有21-羟化酶分泌不足，2个有尿道直肠隔畸形），4个被诊断为男性假两性畸形（其中1个有类固醇硫酸酯酶分泌不足，1个推测可能为弯肢性发育异常，另外2个原因未定），5个有染色体异常，2个有性逆转，核型为（46，XX+SRY）。

False positive were lowered to an acceptable rate by this protocol, therefore, a big amount of work on fingerprint to get rid of false positive clones can be avoided. When whole BAC clone containing one locus of a multi-loci probe were applied for library screening, no matter homogenic BAC or heterogenic BAC, site-specificity is higher than short DNA fragment probes.

对于无法通过小基因组填补间隙的区段，可以本物种BAC克隆直接进行染色体步移，采用抑制重复顺序杂交法能够有效抑制大量存在于植物基因组中的重复顺序的干扰，把假阳性率降低到可以接受的范围，从而避免了用大量指纹分析剔除假阳性克隆。

The short stature homeobox-containing gene, located in the short-arm pseudoautosomal region (PAR1) of the sex chromosomes, is one of the recently discovered genes, which is related to short stature.

位于X及Y染色体的短臂的假常染色体区的矮小同源盒基因是一个近年来发现导致矮小症的基因之一。

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。