Question 1
Two separate sperm cells fertilize two separate ova to produce __________ twins.
◦ dizygotic
◦ neurogenetic
◦ monozygotic
◦ identical
Question 2
Ultrasonography is __________.
◦ mainly used to detect developmental defects in the fetus
◦ potentially harmful to the fetus
◦ used to monitor fetal growth, detect multiple births, and detect developmental defects
◦ rarely used because it carries high risk of harm to the mother