No they don't come out dead, they just don't exist, would be nice if it was that simple. Sperm fertilizes an egg, both cells carry the fatal gene and the zygote, or embryo or what ever stage it reaches stops development. Simple as that. Its a theory, most people with the capability of looking for such a thing would find this a waste of time as those who would look for it don't have the capability.
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Randall L Turner Jr.
Boas make the world go round.

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