X chromosomes

In terms of genetics, the female cell has two X chromosomes, one from each parent. So a woman's wisdom comes from both father and mother.

Instead of two X chromosomes, some women have three; others have two XXs and an extra Y, or one of many other variations.

In mammals, dosage compensation is achieved by transcriptional silencing of one of the two female X chromosomes.

Classically, Y chromosomes are thought to originate from X chromosomes through a process of degeneration and gene loss.

Strangely, none of the women had the SNP on both X chromosomes.

But previous radiation experiments on animals suggest the boost in males may be due to damage to X chromosomes in sperm, Scherb said.

Two X chromosomes and a blue uniform may not be enough.

How can a person with two X chromosomes be a man? In more ways than one. . .

X-inactivation occurs only in females and results in the silencing of most of the genes on one of the X-chromosomes in each cell.

If the new fertilized cell contains two X-chromosomes , the embryo will eventually form ovaries .

After screening 1161 X chromosomes from non-retarded healthy individuals, we found no carriers with the permutation allele.

In mammals, every cell in females has two X-chromosomes, while every cell in males has a single X-chromosome.

As MeCP2 resides on the X-chromosome, this meant studying male mice as females have two X-chromosomes.

Unless a woman has two X-chromosomes with the recessive gene she will not suffer from hemophilia;

the cells of a female body contain a or two x chromosomes ( xx )