Definition for Amniocentesis
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Amniocentesis is a medical procedure used in prenatal diagnosis of chromosomal abnormalities and fetal infections, in which a small amount of amniotic fluid, which contains fetal tissues, is sampled from the amnion or amniotic sac surrounding a developing fetus, and the fetal DNA is examined for genetic abnormalities. Using this process the sex of the fetus can also be determined and hence this procedure has legal restrictions in some gender-biased countries.