All Y chromosomes in existence today are descended from a single ancestor's who is thought to have lived about 140,000 years ago.
现在存在的所有Y染色体都来自于一个被认为生活在大约14万年前的同一祖先。
Amelogenin (AML) gene locates on the conservative region of the bovine X and Y chromosomes.
牛牙釉蛋白(AML)基因定位于牛x染色体和Y染色体上的同源区域。
However, in 2000, scientists announced that the X and Y chromosomes were once a pair of identical twins.
然而，在2000年，科学家曾宣布，X染色体和Y染色体曾经是同卵双胞胎。
Then the scientists tracked down living male descendants and asked to sequence their Y chromosomes.
然后，科学家们寻访到了家系中目前仍在世的男性后裔，并要求对其Y染色体进行测序。
Men are being used in the study because male Y chromosomes provide detailed information about male ancestry.
男子正被用于研究，因为男性的Y染色体提供详细资料，说明男性祖先。
There are abundant gene conversion between arms of palindromes in Y chromosomes of human which caused powers of self-preservation.
回文序列上经常发生臂间基因转换，使Y染色体具有自我保护能力。
But the Y chromosomes differ in 30 percent of their DNA, meaning that these chromosomes are changing far faster in both species than the rest of the genome.
但是在Y染色体上却存在30%的DNA差别，这意味着两个物种的Y染色体比其它基因组变化得更快。
The Y chromosomes in Flemish men with French surnames, the researchers found, had the same genetic markers found in men who live today in the region of France where their ancestors originated.
研究人员发现，冠有法国姓氏的法兰德斯男性与至今仍生活在他们法国故乡的男性，Y染色体上带有相同的遗传标记。
There are two chromosomes (chromosome X and chromosome y) involved in this process, and a combination of these chromosomes will determine the gender of the baby.
有两条染色体(染色体x和染色体y)参与到这个过程中，这些染色体的组合将会决定婴儿的性别。
A human with two X chromosomes is female, while someone with an X and a Y is male.
有两个X染色体的是female, XY染色体的是male。
In a UCL study of Y-chromosomes of men living in Britain, from east Anglia to Wales, those from towns in central and eastern England differ significantly from those in Wales.
通过英国伦敦大学学院对居住在英国的男人的Y染色体研究来看，从东英吉利，到威尔士，不同于城市中部的人，东英格兰人明显不同于威尔士人。
Also, females have two "X chromosomes." males have one "X" and one "Y" chromosome.
另外，女性还有两条X染色体，而男性则还有一条X染色体和一条Y染色体。
If this is reflected in the entire Asian population, then it could mean around 830 million men living in Asia currently owe their Y-chromosomes to one of these eleven men.
如果这一点反映了整个亚洲的人口状况，可能表明约8亿3千万亚洲男性都从这11位祖先中的某一位那里继承了Y染色体。
If this is reflected in the entire Asian population, then it could mean around 830 million men living in Asia currently owe their Y-chromosomes to one of these eleven men.
如果这一点反映了整个亚洲的人口状况，可能表明约8亿3千万亚洲男性都从这11位祖先中的某一位那里继承了Y染色体。
应用推荐