Marjory is 45 years old and Jason is 51 years old.Marjory has just become pregnant and both are worried about having a child at their ages.Which prenatal screening procedure would their doctor most likely advise to rule out chromosomal abnormalities?
A) an ultrasound
B) amniocentesis
C) chorionic villus sampling
D) maternal blood analysis
Correct Answer:
Verified
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