1.why is it difficult to dtermine the effects of prenatal exposure to some wnvironmental agents such...

1.why is it difficult to dtermine the effects of prenatal exposure to some wnvironmental agents such as srugs, diseases and pollution?

2. can gene influence the extent to which the developing baby susceptibility to the effects of teratogens.

Expert Solution

Exposure to certain environmental chemicals has been linked to birth defects; premature deliveries, stillbirths, and infants with low birth weight; and problems with nervous system development. But there is no way we can study the impact of any one of them individually on the health of the unborn as there can be anything which may happen to it and we will not be able to get better over time.
Teratogenic agents include infectious agents (rubella, cytomegalovirus, varicella, herpes simplex, toxoplasma, syphilis, etc.); physical agents (ionizing agents, hyperthermia); maternal health factors (diabetes, maternal PKU); environmental chemicals (organic mercury compounds, polychlorinated biphenyl . So we see that health factors like maternity can be carried genetically to the unborn. So we can say that genes do have an impact on the xtent to which the developing baby susceptibility to the effects of teratogens.

Hayet Jeridi answered 8 months ago

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