Short Description

Barr body / Sex chromatin is the inactive X chromosome in female somatic cells which have two X chromosomes. One X chromosome remains active while the other condenses on the nuclear membrane & forms a Barr body. Males have one each of X & Y chromosomes, hence do not have a Barr body.

PreTest Information

Patient must rinse mouth with water prior to sampling. Give brief clinical history.

Detail Description

BUCCAL SMEAR FOR BARR BODIES (SEX CHROMATIN) Test Cost INR:468 Symptoms Diagnosis

DNA Labs India offers a range of DNA tests, including the buccal smear for Barr bodies (sex chromatin) test. This test is used to determine the sex of an individual and can be useful in cases where gender is not immediately apparent or in cases where gender has been called into question.

What are Barr Bodies?

Barr bodies are small, inactive X chromosomes that are present in females. They are named after Murray Barr, who discovered them in 1949. The presence of Barr bodies in a cell can indicate that the cell is female, while the absence of Barr bodies can indicate that the cell is male.

Why is the Buccal Smear for Barr Bodies Test Performed?

The buccal smear for Barr bodies test is performed for a variety of reasons. It can be used in cases where the gender of an individual is not immediately apparent, such as in cases of intersex individuals. It can also be used in cases where gender has been called into question, such as in cases of disputed paternity.

What are the Symptoms of Barr Bodies?

There are no symptoms associated with Barr bodies as they are a normal part of the female anatomy. However, the presence or absence of Barr bodies can be indicative of an underlying genetic condition, such as Klinefelter syndrome or Turner syndrome.

How is the Buccal Smear for Barr Bodies Test Performed?

The buccal smear for Barr bodies test is a non-invasive test that involves collecting cells from the inside of the cheek using a cotton swab. These cells are then analyzed for the presence or absence of Barr bodies using a microscope.

What is the Cost of the Buccal Smear for Barr Bodies Test?

The cost of the buccal smear for Barr bodies test at DNA Labs India is INR 468.

How is the Buccal Smear for Barr Bodies Test Diagnosed?

The buccal smear for Barr bodies test is diagnosed by a medical professional or a genetic counselor. They will interpret the results of the test and determine if any further testing or treatment is necessary.

Conclusion

The buccal smear for Barr bodies test is a useful tool in determining the sex of an individual and can be used in cases where gender is not immediately apparent or in cases where gender has been called into question. DNA Labs India offers this test at an affordable cost of INR 468 and can provide results quickly and accurately. If you have any questions or concerns about this test, please consult with a medical professional or a genetic counselor.