Conception: There are minor environmental or other issues that have a small impact, but the information that defines what these shall be/look like is set at the time of conception. The DNA data that results when the parents information is passed will determine the what the final potential will be. If your question is when during pregnancy, be assured that all external features are finished by 12 wks.
Answered 3/16/2015
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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