单词Y chromosome
n.: Y 染色体
网络: Y染色体；性染色体
Y 染色体:
a sex chromosome . In human males each cell has one X chromosome and one Y chromosome . In human females there is never a Y chromosome .
In mammals, females are XX while males are XY so a woman should never be able to provide the necessary Y chromosome genes to produce a son.
在哺乳动物中，雌性的性染色体是XX，而雄性的是XY，所以一个女人是绝不可能产生男性不可缺少的Y染色体基因而生育男孩的。
Known as the centromere, the middle space between the two arms of the Y chromosome is key to its health.
熟知着丝点的都知道，两条Y染色体中间的空间对于染色体的健康至关重要。
The rapid decline of the Y chromosome seems to have ground to a halt at least tens of millions of years ago.
Y染色体的快速衰退似乎在数千万年前就陷入了停滞。
The sperm with the Y chromosome were leaner and faster and could swim down to the bottom of the tube more efficiently.
带有X染色体的精子体型更纤细、游速更高，能够更快地游到试管底部。
A core set of Y chromosome short tandem repeat (Y-STR) loci have been selected for use in human identification applications.
Y染色体的一套核心短串联重复序列（Y-STR基因）位点已在人类识别应用中选用。
It is now clear that the Y chromosome is by far the most rapidly evolving part of the human and chimp genomes.
现在我们知道了Y染色体是人类和黑猩猩基因组中进化最迅速的部分。
The Y chromosome has long been thought of as a stagnant part of the genome, where genes are slowly decaying in males of all species.
过去一直认为Y染色体是基因组中停滞不前的部分，并在雄性物种中慢慢退化。
Over millions of years of evolution the Y chromosome, the biological keeper of all things male, has withered and shrunk.
堪称一切雄性生物主宰者的Y染色体在经历了数百万年的进化之后，已经逐渐凋零和萎缩了。
There is already a precedent for this in nature, in the form of a Japanese spiny rat which has survived the loss of its Y chromosome.
在自然界，这种新型染色体已有先例。在一种日本田鼠身上，即使没有了Y染色体，它们仍然能够繁衍生存。
This report mainly describe the SNPs and Y-chromosome SNPs characteristics and its potential applications to the forensic medicine.
本文综合介绍了SNP和Y-SNP的一般特性及在法医学中的应用价值。