X-chromosome

This syndrome is the result of an unbalanced translocation resulting in a deletion of the distal end of the short arm of the X chromosome.

But for a son, he can only get the X chromosome from his mother.

X chromosome mosaicism is not the only genetic difference between males and females.

If so, there could be a familial genetic disorder called fragile X, in which a certain portion of the X chromosome is abnormal.

Because these genes are carried on the X-chromosome, they are subject to a process known as X-chromosome inactivation.

The X chromosome is shown here in a condensed state, as it would appear in a cell that's going through mitosis.

and crossovers on the X chromosome often did not occur.

Sometimes there may be abnormalities in the X chromosome in only some cells in the body.

Recent studies have revealed mechanistic parallels between imprinted X-chromosome inactivation and autosomal imprinting.

In a few cases, women may have two distinct green cones on either X chromosome.

But many primates , including humans, hae a third photopigment, encoded by a second gene on the X chromosome.

Men who carry the faulty genes can only pass them on through their X chromosome to their daughters.

But since then, the Y has steadily lost genes as well as its ability to recombine and swap genes with the X chromosome.

Men may have an extra X chromosome or two on top of their normal XY combination.

In males (who have only one X chromosome), one altered copy of the gene in each cell is sufficient to cause the condition.

Researchers have long been aware of a genetic variant on the X chromosome that was linked to male pattern baldness, Richards said.

Although this theory is plausible, to date, no genes on the X chromosome have unequivocally been associated with autism, Hu said.

The sperm's X or Y status determines the sex of the baby upon meeting the egg, which only carries the X chromosome.

Female and male cells had indistinguishable profiles for autosomes but differences on the X chromosome.

Heterogametic sex The sex with dissimilar sex chromosomes, one (in mammals the Y chromosome)being shorter than the other(the X chromosome).

The disease is autosomal-recessive and linked to the X-chromosome, so that men whose mothers are carriers of the gene manifest the disease.

A genetic variant on the X chromosome may explain why some HIV-infected women are slower to develop full-blown AIDS than men.

The chromosome carrying the male determining genes is designated Y and the corresponding female one the X chromosome.

Remember, males will show symptoms of the disease if their only X chromosome is defective.

Inheritance is linked to the X chromosome and recessive, so the disease primarily affects boys.

The 23rd chromosome in all oocytes is always an X chromosome.

The defective gene that causes Duchenne's and Becker's muscular dystrophies is located on the X-chromosome.

And bizarrely, the X chromosome moves closer to the center after epileptic seizures.

Females carry two copies of the X chromosome while males carry one X and one Y chromosome.

The disease can skip a generation until another son inherits the defective gene on the X-chromosome.

I'm sensitive, creative and artistic, and perhaps that comes from my extra X chromosome.

Boys are born with one Y and one X chromosome in all their body's cells, while girls have two X's.

ARX gene mutations are related with many X-chromosome linked disorders.

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

There is random inactivation of one X chromosome in all cells of the female embryo at the blastocyst stage.

Most interesting was what the scientists discovered about the X chromosome in humans and chimpanzees.

A human sperm cell contains either an X or Y chromosome, while an egg only has a X chromosome.

While a male cell has an X chromosome from the mother and Y chromosome from the father.

In one study, researchers linked DNA markers in the Xq28 region of the X chromosome to gay males.

Challenge: A mutation on the X chromosome is the most common known cause of autism.

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

The higher prevalence of autism that is seen in males versus female suggests the possible involvement of the X chromosome.

Tests showed that radiation caused damage to the X chromosome in sperm, Dr Scherb said.

They suggest that genes on the X chromosome play a role in autism.

The microRNAs have the effect of "silencing" immunity genes on X-chromosome, according to the new research.

In some women, most often black women, the two X chromosome each encode a different G6PD isoenzyme .

Today, the Y chromosome holds fewer than 30 genes, against the X chromosome's 800 or so.

This is because there are two types of sperm produced in equal amounts; one carrying a X chromosome, and one carrying a Y chromosome.

As with mice, the TEX11 gene is also located on the human X chromosome.

The dystrophin gene is found on the X chromosome and passed on to children through a mother who is a carrier.

This is because androgen receptors, a key hormone in the process of balding, are on the X chromosome.

All of the abnormal genes found in the study were on the X chromosome, which boys always inherit from their mothers.

It's on the X chromosome.

Objective: To study the application of specific genetic pattern of X-chromosome STR loci in siblings' identification.

The expression of X-chromosome-linked inhibitor of apoptosis protein and its effect on chemotherapeutic sensitivity in bladder carcinoma

Prenatal diagnosis of X-linked anhidrotic ectodermal dysplasia with X-chromosome inversion

Polymorphism and multiplex amplification of 3 X-chromosome specific short tandem repeat loci