Benefits of gender blood tests in genetic testing.
                     Benefits of gender 
blood tests in 
genetic testing.
The prenatal genetic test can provide 
information about the chances of their 
offspring being born with genetic defects. 
These tests can be done in two ways:
• By screening
• By Diagnostic test
A prenatal genetic test can be done by samples like
blood, cell-free DNA, and some specific type of 
ultrasound.
These prenatal tests are usually done in the 1st and 
2nd trimesters of the pregnancy. And although 
screening tests don’t tell about birth defets they 
can warn about the presence of a genetic disorder.
A sex blood test is a non-invasive prenatal test. In
this test blood sample is used to determine the 
gender of the fetus. And since
it is a non-invasive test it has less risk of problems 
related to pregnancy
like miscarriage, leakage of amniotic fluid. 
The analysis of prenatal diagnostic tests is 
done by
different techniques such as:
By arranging the images of chromosomes from largest
and smallest and detecting any kind of abnormalities in 
them.
By using Fluorescence in situ hybridization to detect
the number of chromosomal abnormalities.

Why do a gender blood 
test?
Generally, sex-linked disorders are recessive 
disorders linked to the X chromosome and 
exclusively occur in males as they only have 
one X chromosome. A blood test to find out 
the sex of the baby is generally useful in he 
child who has a high-risk f developing a 
genetic disorder and although prenatal 
screening is not accurate the result of the test 
varies in different cases.
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