What is this test?
- This laboratory test is performed on a buccal (lining of mouth) smear to identify barr bodies in the somatic cells. Barr body is an inactive X chromosome in the female (XX) somatic cell. The cell with inactive X chromosome gives the descendant the same structure, helping in gender determination of the descendant.
Why is this test performed?
This test is performed:
- To detect the presence of barr bodies
- To determine the gender of unborn child
- In determining turner syndrome and Klinefelter syndrome
- For the delayed onset of puberty.
- What is a barr body?
- Barr bodies are the inactive X chromosome in the female somatic cell. It is a compact structure of chromatin in the nuclei. The cell with inactive X chromosome gives the descendant the same structure, helping in gender determination of the descendant.
- Is this procedure painful?
No, this procedure is not painful. The buccal mucosa is scrapped with a cotton swab, which might be uncomfortable for some people.
- How to get this test?
Buccal smear for barr bodies is available online at dawaai.pk. Book it now and get it done at the lowest price.
- When does this X-inactivation occur?
This inactivation occurs very early in embryonic development, approximately 7 to 14 days after fertilization.
- What are the benefit of this test?
- It is easy and pocket-friendly
- Determine the gender of baby without any physical examination
