Given that we do not receive salvation and renewal of God’s image through genealogical descent, it seems possible (though speculative) that being spiritually human could spread from Adam and Eve to other biologically similar individuals.
Many ideas about the transmission of positive and negative aspects of human nature remain heavily influenced by classical Greek philosophical ideas about reproductive biology. As many of those ideas are scientifically incorrect, reviewing these concepts is an important task.
Of course, creating doctrines to conform tightly to the latest scientific ideas is likely to similarly face problems of obsolescence. Science does make progress. The basics of genetics are not likely to change. But new complications are likely to be found, in addition to the problematic questions of how spiritual components are linked to the physical. Rather, we should seek to identify where theological ideas have been excessively influenced by Classical thought or by anything else.