So, now the Protestants are throwing in "divine genes?" To speak of Mary's DNA is ludicrous. If it is her "egg" you are talking about, it's a haploid and non-viable. It also contained female sex hormone (X). If you are talking about her flesh, then her DNA was that of her parents, namely her mother's X and her father's mother's X chromosomes, for the XX pair (and a characteristic Barr body).
To speak of any kind of "conception" as we know it is plain fantasy.
By your definition she could not possibly be the "Mother of God". She was just a "Surrogate Mother"; i.e., "The Immaculate Incubator"
OK, then what is your explanation of the mechanics of the starting point of the person Mary gave birth to? Did God just zap a baby in there or what? If He did, then how were the lineage requirements met? Would the title "Son of David" really fit through adoption by Joseph? That sounds pretty forced to me, and completely unnecessary.
To speak of any kind of "conception" as we know it is plain fantasy.
The Bible says "conceive". That usually involves "conception". What do you think it means?
Luke 1:31 : And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name JESUS. (KJV)