Both environmental and genetic influences impact fetal development. Some substances (e.g., folic acid, hormones, etc.) have the biggest influence at sensitive periods during gestation. Early in gestation, when neurological development is at its peak, folic acid is most important. Hormones, such as androgen and estrogen, are necessary for external genital differentiation between 9 and 12 weeks of gestation. Prenatal alcohol exposure, however, can impact fetal growth at any time during gestation. On the other hand, environmental influences such as maternal genetics, nutrition, health, and immunization can have a positive impact on fetal development, mitigating the impact of substances and other negative influences. In addition to environmental influences, you must also consider the impact of genetic influences. Genes determine not only an individual’s physical features at birth—they also contribute to hormonal processes throughout the lifespan. The interaction of environmental influences and genetic influences impacts the development of a fetus.
For this Discussion, you will examine environmental and genetic influences on fetal development.
To prepare for this Discussion:
By Day 4
Post a brief description of the genetic influence and the environmental influence you selected. Then, explain how the environmental influence might positively or negatively affect the development of a fetus with the genetic influence you selected. Be specific and provide examples. Use your Learning Resources to support your post. Use proper APA format and citations.
By Day 6
Respond to at least one of your colleagues’ posts and include an additional influence (genetic or environmental) that could interact with one of the influences identified by your colleague. Use your Learning Resources and other scholarly sources to support your post.
Return to this Discussion in a few days to read the responses to your initial posting and answer any questions. Note what you have learned and/or any insights that you have gained as a result of your colleagues’ comments.
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