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colleen colleen
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9 years ago
Whether a fetus will be born with Down syndrome is related to
a. the age of the mother at the time of pregnancy.
b. the presence of specific amino acids in the mother’s diet.
c. over-exposure  to toxins during pregnancy.
d. ingestion of drugs and alcohol by the father prior to conception.
e. the uterine environment during pregnancy.
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ThePsychicThePsychic
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