An advantage to __________,which is used for fetal genetic testing,is the speed with which results are obtained,ranging from three hours to seven days.

Question

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Chorionic villi sampling (CVS) is a technique for fetal genetic testing that involves taking a small sample of the placenta. One of the advantages of CVS is the speed with which results are obtained, typically ranging from three hours to seven days. Amniocentesis, another type of fetal genetic testing, typically takes longer to produce results (one to two weeks). The alpha-fetoprotein test and ultrasound are not used for fetal genetic testing.

An Advantage to __________,Which Is Used for Fetal Genetic Testing,is