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genderma genderma
wrote...
Posts: 4967
8 years ago
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
Textbook 
The World of Children

The World of Children


Edition: 3rd
Author:
Read 173 times
3 Replies
Replies
Answer verified by a subject expert
yariyari
wrote...
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Posts: 8207
8 years ago
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genderma Author
wrote...
8 years ago
Merci beaucoup!
wrote...
8 years ago
You're very welcome Happy Dummy
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