Comment: I suppose it is possible

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In reply to comment: Verification by autopsy. (see in situ)

I suppose it is possible

But, nutrition has no effect on a zygote and embryo prior to an umbilical connection. It is possible that the genetic mutation exist prior to the effect of nutrition through the mother's system.

"In the beginning of a change the patriot is a scarce man, and brave, and hated and scorned. When his cause succeeds, the timid join him, for then it costs nothing to be a patriot."--Mark Twain