The number of protons,neutrons,electrons, the way the are classified (earth metal, noble gas,meteoroids) and also the way they react.
It might have made the egg into a solid. Maaybe like a boiled egg.
The Genotype of the father is gg; The possible genotypes of offspring will be
Gg; gg; Gg; gg. Therefore there is a 50% chance that the child will have galactosemia. The parents could have had; both had gg genotype,or both had Gg genotype, or one had gg and the other Gg.
What happens is you will get dieabeties