Doctors recommend that pregnant women who are _________ or older should undergo genetic testing to determine if their fetus has an extra 21st chromosome.
A) 25
B) 35
C) 45
D) 55
Correct Answer:
Verified
Q78: Which of the following is an example
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Q80: Trisomy 21 is another name for
A) Huntington's
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Q84: With the exception of trisomy 21, having
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