93 MCQs in Pathology

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Which of the following statements about the time of action of human teratogens is false?

A. maternal hyperthermia in the first trimester is associated with anencephaly.

B. patterning genes such as HOX and PAX are most sensitive to disruption in the first few postconceptional days.

C. the later the maternal exposure to diethylstibestrol (DES), the less is the likelihood of vaginal adenosis in female offspring.

D. poor control of maternal diabetes in early gestation is more teratogenic than in late gestation.

E. the external genitalia of the female fetus remain sensitive to teratogenic agents during the early fetal period.


Category: Pathology MCQs



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