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Sex in humans is determined by the combination of sex chromosomes, X and Y. In males, every cell in their body (except for erythrocytes (red blood cells, which are non-nucleated and do not contain DNA)) and sperm cells (which only contain either a single X or Y chromosome) contains both X and Y chromosomes. In females, every cell (except those previously mentioned in males) contains two X chromosomes, except that one of those (through a process believed to be random) X chromosomes atrophies into what is called a "Barr body". Basically, this is a transcriptionally inactive chromosome (in that there is no gene expression from this chromosome). Only 1 of the 2 X chromosomes in each cell undergoes this.
Your question is worded strangely because it sounds like you're asking if the ENTIRE female body contains 2 Barr bodies, when in fact it contains billions and billions of bar bodies...however, I suspect you were asking on the cellular level, and thus every somatic (non-sex) cell in the female body contains a single Barr body and a single functional X chromosome.*
*There are genetic anomalies that may be the exception to this, but this is in normal, healthy females.
What else can I help you with?
A human cell with 2 Barr bodies and no Y chromosome is from?
The human cell is most likely from a female individual. Barr bodies are inactivated X chromosomes in females, and the absence of a Y chromosome indicates that the individual does not have male sex chromosomes.
Where can barr bodies be found?
BARR BODIES CAN BE SEEN AS A SMALL APPENDAGE ON THE NUCLEOUS OF A POLYMORPHONUCLEAR NEUTROPHIL OF BLOOD CELLS FROM A FEMALE HUMAN. THESE ARE ONE OF THE WHITE CELL TYPES SEEN ON A BLOOD SMEAR DONE ON A CBC. tim goodman clinical lab scientist
A human individual is phenotypically female but her interphase somatic nuclei do not show the presence of Barr bodies what concerning her is probably true?
The individual likely has an intersex condition like Androgen Insensitivity Syndrome (AIS) where the body does not respond to androgens, and thus does not form Barr bodies in the nuclei. In AIS, the individual has XY chromosomes but develops female physical characteristics due to insensitivity to male hormones.
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 female human cells. It is an inactivated X chromosome, which compensates for the presence of two X chromosomes in females by silencing one of them to achieve dosage compensation.
How many barr bodies are present in a normal xx female?
A normal XX female will typically have one Barr body, which represents the inactivated X chromosome. The other X chromosome is active, while the inactive X chromosome condenses into a Barr body during development to compensate for gene dosage between males and females.
A human cell with 2 Barr bodies and no Y chromosome is from?
The human cell is most likely from a female individual. Barr bodies are inactivated X chromosomes in females, and the absence of a Y chromosome indicates that the individual does not have male sex chromosomes.
If the extra x will be Barr bodies why do kline felter males or Turners female have certain problem?
if the extra Xwill be Barr bodies why dp kline felter males or Turnes female have certain problem
What is the number of barr bodies inside the cheek cell of a human?
143
Where can barr bodies be found?
BARR BODIES CAN BE SEEN AS A SMALL APPENDAGE ON THE NUCLEOUS OF A POLYMORPHONUCLEAR NEUTROPHIL OF BLOOD CELLS FROM A FEMALE HUMAN. THESE ARE ONE OF THE WHITE CELL TYPES SEEN ON A BLOOD SMEAR DONE ON A CBC. tim goodman clinical lab scientist
A human individual is phenotypically female but her interphase somatic nuclei do not show the presence of Barr bodies what concerning her is probably true?
The individual likely has an intersex condition like Androgen Insensitivity Syndrome (AIS) where the body does not respond to androgens, and thus does not form Barr bodies in the nuclei. In AIS, the individual has XY chromosomes but develops female physical characteristics due to insensitivity to male hormones.
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.
How many barr bodies are found in an extra y chromosome?
Barr bodies are inactivated X chromosomes found in females, and males typically do not have Barr bodies since they have one X and one Y chromosome. In the case of an individual with an extra Y chromosome (for example, XYY syndrome), there are no Barr bodies present, as Barr bodies are formed from X chromosomes only. Therefore, the presence of an extra Y chromosome does not contribute to Barr body formation.
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 female human cells. It is an inactivated X chromosome, which compensates for the presence of two X chromosomes in females by silencing one of them to achieve dosage compensation.
How many barr bodies are present in a normal xx female?
A normal XX female will typically have one Barr body, which represents the inactivated X chromosome. The other X chromosome is active, while the inactive X chromosome condenses into a Barr body during development to compensate for gene dosage between males and females.
Why are barr bodies important?
Barr bodies are important because they are condensed, inactive X chromosomes found in female cells, which helps balance gene expression between males and females. This process, called X chromosome inactivation, ensures dosage compensation between sexes and prevents overexpression of genes on the X chromosome in females. Barr bodies also play a role in regulating gene expression and maintaining cellular function.
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.
Barr bodies at the edge of the typical cell nucleus as well as the drumstick appendages in the nuclei of neutrophils from a blood sample represent the?
inactive heterochromatin of cells from a female
