| Repeating Rifle 2005-03-19, 5:38 pm |
| in article 1gt7sse.f1amg9nsfj9cN%rlaughton@invalid.com, Ray Laughton at
rlaughton@invalid.com wrote on 3/10/05 6:43 AM:
> Mirror imaging occurs in about 25% of identical births, but situs
> inversus is another type of embryonal variation. It can occur with
> hernias and then its life-threatening.
The question that has not been answered so far is: Can a pair of twins in
which one has situs inversus be monozygotic? I think monzygotic means
arising from a single zygote. So another question is: How does situs
inversus originate? Is it a genetic or is it developmental?
Bill
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