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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.
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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?
female
A human cell with 2 Barr bodies and no Y chromosome is from?
A female with 3 X chromosomes. (XXX) Two of the X chromosomes will be inactivated, leaving one functional X chromosome, 2 Barr bodies, and no Y chromosome.
How many barr bodies are present in a normal xx female?
Just one.
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 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?
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?
female
A human cell with 2 Barr bodies and no Y chromosome is from?
A female with 3 X chromosomes. (XXX) Two of the X chromosomes will be inactivated, leaving one functional X chromosome, 2 Barr bodies, and no Y chromosome.
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
How many barr bodies are present in a normal xx female?
Just one.
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
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.
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?
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
True or false males generally do not have barr bodies?
True(:
What is the dense region in nucleus of female cells?
The Barr Body
