sex chromosomes

There were 2 cases of abnormal sex chromosomes, 2 cases of big Y chromosomes and 7 cases of small Y chromosomes in the non obstructive azoospermic patients. No correlation was found between EGF and fructose in the seminal plasma.

非梗阻性无精子症组性染色体异常2例，大Y2例，小Y7例，精浆表皮生长因子、果糖两者间无相关性。

The type of sex chromosomes of beet armyworm is ZZ for males and ZW for females. The sex chromosome is No. 3.

性染色体类型为雄虫ZZ型，雌虫ZW型，性染色体为3号染色体。

NO dimorphic sex chromosomes were observed in either sexof the three species examined.

三种水龟的雌雄个体间均未见有异型的性染色体.

This works for diploid plants, but numerous plant species are polyploid and must therefore have multiple sex chromosomes.

这对二倍体植物起作用，但多数植物是多倍体，它们必定有多条性染色体。

Chromosomes also determine the sex of animals.

染色体也决定动物的性别.

Concerning characteristics that are determined by genes carried on the sex chromosomes ( on the X chromosome in particular).

关于携带性染色体（尤指x染色体）基因决定的特征。

The mechanism of x haploid bee sex determination was, first, x gene quantity with x chromosomes not only was less than Y genes with euchromosomes, but also x gene quantity with every x chromosme was different;

X单倍体型蜂类的性别决定机制，一是X染色体含X基因的数量小于常染色体组含的Y基因，而且各X染色体含X基因的数量不相同；

Sex chromosomes have not been found in female and male worms.

雌雄蛔虫未发现有决定性别的异型染色体。

Sex development in human is determined by lots of genes on sex chromosomes and autosome. It can be divided into two stages: sex determination and sex differentiation.

人类性别发育包括性别决定和性别分化两个阶段，是由性染色体和常染色体上一系列性别决定和分化基因调控的。

Analysis of the hybridization of probes drived from X and Y chromosomes to different genotype has demonstrated that the sequence differents exist between the sex chromosomes of O.niloticus.

对不同遗传型尼罗罗非鱼的有丝分裂中期相染色体进行荧光原位杂交表明，在尼罗罗非鱼中，X与Y染色体之问存在差异。

It has been shown that the numbers and the morphologies among the autosome pairs in these four breeds nearly coincided, but there were comparatively remarkable differences among the sex-chromosomes.

结果表明，这四个品种中常染色体对间的带纹数目及形态基本一致，而性染色体间的差异却较大。

Therefore, the sex chromosomes of spiny eel are ideal material for microdissection experiments.

由此可见，刺鳅的性染色体无疑是鱼类性染色体显微分离研究理想实验材料和研究对象。

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。

Objective: To observe the segregation of sex chromosomes in the spermatozoa of a 46, XY/ 47, XXY patient with oligozoospermia.

目的：观察1例46，XY/47，XXY少精子症患者精子性染色体分离的情况。

One pair are called the sex chromosomes because they contain genes that determine sex.

一对称为性染色体因为它包含决定性别的基因。

Homogametic sex The sex with homologous sex chromosomes, in mammals, designated XX.

同配性别:指有相同性染色体的性别, 在哺乳动物中, 它用XX来表示.

Human amelogenin gene is a pair of alleles, which located at X and Y chromosomes. Study on the expression changes of amelogenin on the sex chromosomes has been an important method for sex identification.

人类釉原蛋白基因是分别位于X和Y染色体上的一对等位基因，其在两条性染色体上的不同表达成为性别鉴定的重要方法。

That's the phase of sexual reproduction when sex cells divide in two halves, each with half of the chromosomes needed to create a new snake.

减数分裂是有性生殖的一个阶段：生殖细胞分成两部分，每部分带有一半创造新生命所需要的染色体。

The researchers revealed the animal has 52 chromosomes, including 10 sex chromosomes.

研究人员发现,鸭嘴兽有52条染色体, 其中10条为性染色体.