In the human race, God made male and female but, God fashioned Adam *only* as a special creation, and then Eve, as a creation *from Adam* and not a special and separate creation on her own. Perhaps in more technical terms, if we can even do so, with something that God did was that He created Eve from the very genetic code and *actual material* straight out of Adam and not of anything from the earth or the elements in the earth. Adam was made out of the earth and its elements. Eve was made *specifically* and *entirely* from Adam.
Eve was taken from Adam's "rib". Rib could and probably should have been translated as "curve". In line with your thinking could it be the helix curve? The DNA of Adam to make Eve. "Bone of my bone, flesh of my flesh".
Humans are made to procreate, in order to extend and expand the human race. Adam was the first man, a special-made creation of God (out of the earth and its elements),
I agree with much of what you are saying but not with Adam being the first man. Go to Gen.1:26 -
And God said, "Let Us make man in Our image, after Our likeness: and let them have dominion.......
27.So God created man in His own image, in the image of God created he him; male and female created He them.
2:5 ...and there was not a man to till the ground
7.And the Lord God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.
20......but for Adam there was not found an help meet for him.
22.And the rib, which the Lord God had taken from man, made He a woman, and brought her unto the man.
Mankind (all races) were "created" - male and female at the same time. Adam, the line from whom Christ would come, was "formed" to till the ground. Later Eve was taken from his body. That creating and forming were two separate events. Peter tells us that "one day with God is as a thousand years". I believe that applies here in that mankind was a 6th day creation (6,000 years into the creation) and Adam was an 8th day creation.
Understanding this answers many questions. Some being where the various races came from and where Cain's wife came from and why Cain "builded a city", if there was just he and his wife.
......Ping
The first HUMAN man.
Cain was married to, and built a city for, spiritually devoid human bodies.