What Stage Of Pregnancy Are Teratogens Most Harmful? Time of exposure: Teratogens are most harmful early in pregnancy, starting about 10 to 14 days after conception to about 8 weeks into pregnancy. At what age is the embryo or fetus less susceptible to teratogens? The embryonic period, during which organogenesis takes place, occurs between implantation
When Is The Fetus Most Vulnerable To Teratogens? The embryonic period, during which organogenesis takes place, occurs between implantation at around 14 days to around 60 days postconception. This is usually the most sensitive period to teratogenesis when exposure to a teratogenic agent has the greatest likelihood of producing a malformation. What stage are teratogens
When Do Teratogens Have The Greatest Effects? The embryonic period, during which organogenesis takes place, occurs between implantation at around 14 days to around 60 days postconception. This is usually the most sensitive period to teratogenesis when exposure to a teratogenic agent has the greatest likelihood of producing a malformation. What stage are teratogens most