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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.
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.
How many chromosomes are there in the female nucleus of a pineapple pollen grain?
There are 50 chromosomes in both male and female pineapple pollen grain.
How is the X chromosome inactivated?
X chromosome inactivation is a process that occurs in female mammals where one of the X chromosomes in each cell is randomly inactivated. This ensures that both males and females have similar levels of X chromosome gene products. The inactivated X chromosome condenses into a structure called a Barr body.
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 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.
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.
How many chromosomes are there in the female nucleus of a pineapple pollen grain?
There are 50 chromosomes in both male and female pineapple pollen grain.
How is the X chromosome inactivated?
X chromosome inactivation is a process that occurs in female mammals where one of the X chromosomes in each cell is randomly inactivated. This ensures that both males and females have similar levels of X chromosome gene products. The inactivated X chromosome condenses into a structure called a Barr body.
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.
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.
The number of chromosomes in a nucleus depends upon the female only?
False
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.
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.
Why do barr bodies form?
Barr bodies form as a mechanism of dosage compensation in female mammals, where one of the two X chromosomes in each cell is randomly inactivated during early embryonic development. This ensures that females, who have two X chromosomes, do not have double the dosage of X-linked genes compared to males, who have only one X chromosome. The inactivated X chromosome condenses into a compact structure called a Barr body, which is largely transcriptionally inactive. This process helps maintain gene expression balance between the sexes.
How many chromosomes are there in the male nucleus in a pineapple pollen grain?
There are 50 chromosomes in both male and female pineapple pollen grain.
