I could see how being homozygous tessera might somehow increase the odds of DIE if the baby is homozygous, but I can't think of any way that having a super tessera parent would make an embryo more likely to die, if the embryo is only carrying one copy of the tessera allele, as was the case here. The only difference between the gametes of a tessera and super tessera is that all the super tessera gametes contain a tessera allele, instead of just half of them, so there shouldn't be any way that being homozygous tessera could effect the mortality of offspring, unless those offspring are super tessera and somehow two copies of tessera sometimes has some sort of deleterious effect.
But if you meant you were trying to see if homozygous tessera babies are more likely to die in the egg, then ignore what I just said :laugh:
