Genesis 1 says “adamites” bear the image of God. Genesis 2 doesnt mention it at all. But Genesis 9 has God confirming with Noah that hereinafter, all murder is punishable by death, because the image of god is invoked on all of Noah’s offspring.
Why would God be unable to make more than one human with the same human legacy in terms of genetics?
NOTE
In fact, if we relied on GENETIC descent… the influence (genetic) of Adam would be virtually ZERO in ten generations!