Y chromosome

Results: 550 cases of Y chromosome abnormality were observed in 4,238 patients, accounting for 12.98%, including 497 cases of big Y chromosome abnormality;

结果：共检出Y染色体异常核型550例，占全部被检者12.98%，其中大Y染色体异常497例；

Due to the development of molecular biology and genetics, and the establishment of Y chromosome physical map, the study of male infertility etiology has reached in molecular level.

随着分子生物学和遗传学的发展，随着人类Y染色体DNA序列标记的物理图谱的建立，对男性不育病因学的研究也深入到分子水平。

The pathway of male sexual development in mammals is initiated by SRY, agene on the short arm boundary of Y chromosome.

哺乳动物中位于Y染色体短臂临界区域的SRY基因启动雄性性状的发育。

Y chromosome has two types of polymorphism : metacentric ( or submetacentric ) and acrocentric chromosomes.

染色体有中部 ( 或亚中部 ) 和近端着丝粒染色体.

Objective To study the genetic polymorphism of Y chromosome in different Chinese ethnic group populations.

目的研究中国不同民族群体Y染色体的遗传多样性。

Then were big Y chromosome, four cases, accounting for 7.02% of patients studied and 17.39% of those with ACK: 46, XY/ 47, XXY and 47, XXY, one case for each type.

其次为大Y染色体4例，检出率为7.02%，占异常核型的7.39%。46，XY/47，XXY和47，XYY各1例，检出率为1.75%，占异常核型的4.35%。

The x-chromosome has many genes for which there are no paired genes on the Y-chromosome.

x染色体有许多在Y染色体上不能配对的基因。

The Y chromosome is starting to yield other intriguing tales as well.

Y染色体开始讲出另一些令人神往的故事.

After sequential routine and c-band staining and accurately identifying Y chromosomes, 18 Y chromosomes were measured, arm ratio of them was 3.19, and therefore Y chromosome of Luxi cattle belonged to subtelocentric chromosome.

经常规&C带连续染色，准确识别出y染色体之后测量了18条y染色体，臂比为3.19，属亚端着丝点染色体。

Big Y Chromosome Not Significantly Influences Outcomes of in vitro Fertilization and Embryo Transfer

大Y染色体对体外受精与胚胎移植的影响

The Y chromosome is to yield other intriguing tales as well.

y染色体开始讲出另一些令人神往的故事.

Conclusion: Big Y chromosome has no significant influence on the development of embryos and the outcome of pregnancy.

结论：大Y染色体对胚胎发育及近期妊娠结局无明显影响。

Studies about the genetic diversity of Chinese domestic horses and donkeys were mainly concentrated on mitochondrial genome and autosome. Nevertheless, papers on genetic diversity and origins of Y chromosome in horse and donkey are limited.

目前有关中国马和驴品种遗传多样性的研究多数集中在线粒体DNA和常染色体DNA方面，对其Y染色体遗传多样性和起源进化的研究还比较缺乏。

Objective : To investigate the clinical effect of Y chromosome polymorphism.

目的探讨Y染色体多态性的临床效应.

That's because the male Y chromosome comes equipped with a so-called sex determination gene called SRY.

这是因为男性Y染色体自身携带了决定雄性性别的基因--SRY基因.

While according to previous statistics, the percentage of big Y chromosome in the male patients of reproductive abnormalities is up to 2.18%-21.73%.

据统计，大Y染色体在生殖异常的男性患者中的比例达2.18%-21.73%。

Study on Genetics for Big Y Chromosome

大Y染色体的遗传学探讨

Like humans, platypuses carry an X and a Y chromosome.

鸭嘴兽跟人类一样，也有X和Y染色体

Origins and Migrations of Bouyei People in China& Insights from Y Chromosome and Mitochondrion

中国布依族人的起源及迁移初探&来自Y染色体和线粒体的线索

The results showed that the typical expressions of GVHD were observed 4 or 5 days after the injection of donor spleen cells, and specific male Y chromosome fragment was amplified by genomic PCR in female BALC/ c receipts.

结果显示：3注射脾细胞4～5天后，小鼠开始出现GVHD典型体征，第10天受体小鼠体内扩增出雄性供体小鼠Y染色体特异片段。

The positive rate of Y chromosome of mice in Groups 2-6 was 100 %.

第2~6组小鼠染色体核型分析显示Y染色体阳性率为100%.

At pachytene stage the X and Y chromosome display an extensive side-by-side pairing segment with decreasing length as meiotic prophase progressed.

此外，X、Y染色体间出现扩大配对，其长度随减数分裂的进行而降低。

The X chromosome is metacentric, the Y chromosome being telocentric.

x染色体为中部着丝点，y染色体为端部着丝点。

The relationship between big Y chromosome and infaust pregnancy

大Y染色体与不良妊娠关系的探讨

Objective: To evaluate the influence of big Y chromosome on the outcomes of in vitro fertilization and embryo transfer.

目的：探讨在体外受精与胚胎移植中大Y染色体对其受精方式及结局的影响。

Variable Charge X/ Y is a human testis-specific gene family that localized on sex chromosomes. VCX/ Y family include VCY, which localized on Y chromosome, and VCX-2r, VCX-8r and VCX-10r that localized on X chromosome.

VCX／Y（Variable Charge X／Y）是性染色体上的人睾丸组织特异的基因家族，它包含了定位于Y染色体上的VCY和定位于X染色体上的VCX-2r、VCX-8r和VCX-10r等基因。

A preliminary study of human Y chromosome specific short tandem repeat loci

Y染色体特异短串联重复序列初步研究

Y-chromosome is a middle-sized acrocentric .

Y为 中型 近端着丝粒染色体.

Results: According to the patients ′ cytogenetics examination, it is found there are 11 cases abnormal chromosomal karyotypes, including 6 cases of chromosome translocation, 2 cases of 47, XXY, 3 cases of big Y chromosome.

结果发现异常核型11例，其中染色体易位6例、2例47，XXY、3例大Y染色体。

An X chromosome combines with the mother's X chromosome to make a baby girl ( XX) and a Y chromosome will combine with the mother's to make a boy ( XY).

X染色体与母亲的X染色体结合，就会生出女孩（XX）；而Y染色体和母亲的X染色体结合则会生出男孩（XY）。