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In which cell would an inactivated X chromosome be found?
An inactivated X chromosome would be found in the nucleus of a female somatic cell.
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.
How does the cell adjust to the extra X- chromosome in the female cells?
In female cells with an extra X chromosome (resulting in a condition called Triple X syndrome), the cell can undergo a process called X-inactivation where one of the X chromosomes is inactivated to prevent overexpression of genes. This helps balance gene dosage between XX and XY individuals. However, not all genes on the extra X chromosome may be inactivated, which can lead to variable symptoms in individuals with Triple X syndrome.
What is it called when the inactive X condenses in each cell in to a compact object in the nucleus?
This process is called X-chromosome inactivation, where one of the two X chromosomes in female cells is randomly inactivated to achieve dosage compensation of X-linked genes. The inactivated X chromosome forms a compact structure called a Barr body within the nucleus.
What does a Barr body in a mammalian female cell represents?
A Barr body is an inactivated X chromosome in mammalian female cells, primarily serving to balance gene expression between males and females who have one active X chromosome. This process is known as Lyonization, which equalizes the dosage of X-linked genes in males (XY) and females (XX).
In which cell would an inactivated X chromosome be found?
An inactivated X chromosome would be found in the nucleus of a female somatic cell.
Does the inactivated X chromosome cause Down syndrome?
No, Down syndrome is caused by nondisjunction resulting in an extra chromosome in the 21st pair. An inactivated X chromosome (Barr body) is normal for all females. Females inherit two X chromosomes, and one is heavily methylated.
What is the x chromosome inactivation?
this is the process by which one of the two copies of the X-chromosomes present in female animals is inactivated
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.
What is diffrnet from boys DNA and girls DNA?
This varies by species but in humans the female gender has cells with two x chromosomes of which one is randomly inactivated. This inactivated chromosome is referred to as the barr body. The male gender has cells with both an x chromosome and a small y chromosome. Source - Any recent biology textbook.
How does the cell adjust to the extra X- chromosome in the female cells?
In female cells with an extra X chromosome (resulting in a condition called Triple X syndrome), the cell can undergo a process called X-inactivation where one of the X chromosomes is inactivated to prevent overexpression of genes. This helps balance gene dosage between XX and XY individuals. However, not all genes on the extra X chromosome may be inactivated, which can lead to variable symptoms in individuals with Triple X syndrome.
What is it called when the inactive X condenses in each cell in to a compact object in the nucleus?
This process is called X-chromosome inactivation, where one of the two X chromosomes in female cells is randomly inactivated to achieve dosage compensation of X-linked genes. The inactivated X chromosome forms a compact structure called a Barr body within the nucleus.
How does the lyon hypothesis effect duchenne muscular dystrophy?
The Lyon hypothesis states that one X chromosome in females is randomly inactivated during early development, leading to mosaicism. In the case of Duchenne muscular dystrophy, if the X chromosome carrying the mutation is inactivated in a female carrier, she may exhibit less severe symptoms due to the presence of the normal X chromosome. This mosaicism can result in varying degrees of disease severity among female carriers.
What does a Barr body in a mammalian female cell represents?
A Barr body is an inactivated X chromosome in mammalian female cells, primarily serving to balance gene expression between males and females who have one active X chromosome. This process is known as Lyonization, which equalizes the dosage of X-linked genes in males (XY) and females (XX).
What is the dense region in the nucleus of female cells that forms when one of the x chromosomes is randomly inactivated?
The dense region in the nucleus of female cells that forms when one of the X chromosomes is randomly inactivated is called a Barr body. This process, known as X-inactivation, ensures dosage compensation between males (who have one X chromosome) and females (who have two X chromosomes). The inactive X chromosome is converted into a Barr body to help regulate gene expression.
What happens if a female with Turner Syndrome has the X chromosome inactivated?
If a female with Turner Syndrome inactivates the X chromosome that carries the Turner Syndrome genetic material, she may develop a condition called mosaicism. This can result in a less severe presentation of Turner Syndrome symptoms, as some cells in her body will have the typical number of X chromosomes. However, the exact impact can vary widely among individuals.
Occurs when one x-chromosomes is randomly turned off and forms a barr body?
X-chromosome inactivation is a normal process in female mammals where one of the two X chromosomes is randomly inactivated in each cell during embryonic development. The inactivated X chromosome forms a structure called a Barr body, which helps to equalize gene expression between males (XY) and females (XX). This process ensures that both males and females have a similar dosage of X-linked genes.
