I don't know if you're just being dull, or you really don't get it. The baby Jesus gets no genetic material from Mary. That zygote of the "last Adam," Jesus, and invested with His Spirit of life, and implanted by the Holy Spirit, is supplied out of the same configured DNA as that which was created for the "first Adam," by the same God Who created Adam's body DNA from the dust of the ground.
Thus, the 'quickening Spirit" of Jesus the Beloved Son was begotten in the flesh by entering that zygote, occupied the exact same type of sinless body material, be born, and grew into an adult human male.
What Jesus was going to show was that God in the flesh could come down from on high, occupy a human body not tainted by original sin, and completely satisfy the will of The Father, thus being the only human to fulfill the Law on behalf of all humanity.
So which is it? You denied saying that upthread (though you certainly had said it) and tried to explain it away with some sort of irrational gibberish. In any case, that DNA theory of yours -- unless you have a DNA sample of the unfallen Adam and another from the fallen Adam to compare it to -- is just "eggs in moonshine"!