Gods beget gods. Fish beget fish. "Son of God," then, is a literal statement, descriptive of Christ. Just as "Son of man," is descriptive of God being a man. A holy man , but a male of the human species. Does God have DNA? Being a living being, I dare say he does, and that Jesus, then, carried more than the DNA of Mary. The fact is, that which we call parthenogenesis is a female organism giving birth without sex with a male, which is possible in some species we know of, and we also know that the product of parthenogenesis is always a female offspring, not male. But no mammal on Earth is capable of the process, including humans. And, by the way, men cannot get pregnant. Therefore, Mary did not give birth by parthenogenesis, sometimes called "virgin birth," even in science with no reference to Mary. The Bible says Gabriel told Mary "...the Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee..." [Luke 1: 35 KJV]. You interpret that as you will, but it was not descriptive of parthenogenesis. Luke may have merely been writing euphemistically, or was translated as such, but I suspect God knows what DNA is, and how it is transmitted generation-to-generation. Noah's ark, for example, may have just been a DNA bank of the species then on Earth, with God's laboratory knowledge granted to Noah and family for collection, storage, and proper care in transit from wherever they were to wherever they went.