Answer to Question 1
ANS: b
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a. This response does not explain AFP screening.
b. When a neural tube defect is present, AFP is absorbed in the maternal circulation, resulting in a rise in the maternal AFP level.
c. AFP testing is not related to DNA.
d. Fetal neural tube defects result in an increase in maternal AFP.
Answer to Question 2
ANS: d
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a. Amniocentesis is done under ultrasound guidance, and damage to fetal organs is very rare.
b. Amniocentesis is done under ultrasound guidance, and damage to the umbilical cord is very rare.
c. Amniocentesis is done under local anesthesia, and maternal pain is generally minimal.
d. Amniocentesis involves insertion of a needle into the amniotic sac, and infection is the primary complication.