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Why x-chromosome are also called Barr body?

Updated: 11/2/2022
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SartajHassanSartaj

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13y ago

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That is what random X chromosomes do in the female somatic cells. They form Barr bodies. This is a methylated X chromosome that effectively shuts this chromosome down, one per cell in a random manner. This is done by the body because too much protein product is detrimental to organisms.

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13y ago
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Q: Why x-chromosome are also called Barr body?
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Related questions

An inactive X chromosome which is found in females is referred to as?

X inactive chromosomes are called Legit Durification


What is it called when the inactive X condenses in each cell in to a compact object in the nucleus?

This is called Barr Body..


How many Barr bodies cell does XXXY has?

A Barr body is an inactivated X chromosome. An XXXY cell would contain 1 Barr Body. Men have no Barr bodies, and women have 1.


Where is a barr body found?

A Barr body is the inactivated X chromosome that is usually found in the nuclei of female somatic cells. It can also occur in males when there is an abnormality and the male is XXY instead of the normal XY, a condition known as Klinefelter's syndrome. In this case, the male somatic cells would also contain a Barr body. --- The Barr body is the highly-condensed chromatin structure taken up by an inctivated X chromosome. The number of Barr bodies equal the number of inactive chromosomes.


What is the percentage of Barr body in normal humans?

Females usually have one Barr body; males usually have none.


Is barr body found in 80 percent polymorphonuclear leucocytes?

False. Sex chromatin/barr body can be seen as a 'drumstick' in approx. 5% of polymorphonuclear leucocytes.


Occurs when one x-chromosomes is randomly turned off and forms a barr body?

An X-inactivation occurs when one X-chromosome is randomly turned off and forms a Barr body. It is also known as lyonization.


Do people with Klinefelter's syndrome have an inactivated X chromosome or a bar body?

People with Klinefert´s syndrome have one barr body. Yes , the number of barr bodies in a cell is always equal to the number of X chromosomes minus one. For example in the XXY chromosome there is one Barr body


What is the dense region in nucleus of female cells?

The Barr Body


Are Barr body projection of extra chromatin on the an X chromosome?

Yes.


What are the symptoms of the Epstein Barr Virus?

The Epstein Barr Virus causes mononucleosis. Symptoms of infection with the Epstein Barr Virus include extreme fatigue, sore throat, loss of appetite, body aches, and headache.


A Barr body is normally found in the nucleus of which kind of human cell?

A barr body is normally found in the nucleus of which kind of human cell?