The time when a developing child is most sensitive to teratogens is
A)always in the zygotic stage.
B)always in the embryonic stage.
C)always in the fetal stage.
D)dependent on the type of teratogen.

Question

Quizplus · Accepted Answer

The sensitivity to teratogens depends on the type of teratogen. Different teratogens can affect the developing child at different stages of prenatal development, and some may have no effect at all. For example, exposure to radiation during the zygotic stage may lead to miscarriage, while exposure to alcohol in the fetal stage may cause intellectual disability. Therefore, there is no clear-cut answer to which stage is the most sensitive to teratogens.

The Time When a Developing Child Is Most Sensitive to Teratogens