Final answer:
Amniocentesis is a prenatal test that can detect Down syndrome and other genetic abnormalities by examining fetal cells in amniotic fluid.
Step-by-step explanation:
Amniocentesis is a prenatal testing method that can detect Down syndrome and other genetic abnormalities. In this procedure, a small amount of amniotic fluid is extracted from the mother's abdomen and the fetal cells present in the fluid are examined for genetic defects. Amniocentesis can provide information about the baby's genetic health prior to delivery.