Originally Posted by grannymh
Regarding Catholic teaching
What is key is that the soul is not some special kind of DNA and is not produced by the parents through generation. The spiritual soul is directly created by God
Yes, God directly creates the human person. In fact, "person" ultimately is a singular relation to God.
I say "singular" because the relation does not fit into the traditional Aristotelian understanding of relation. The "relation" of the person to God is analogous to the relations the three Persons of the Trinity have to each other.
It is important to remember that the philosophical term "soul" refers to the Aristotelian form which equates to "human nature". This "form" is defined by genus and specific difference, i.e., "rational animal". However, "person" is not "form". A "person" cannot be defined by a genus and a specific difference.
The human genome is related both to "human nature" and to "person".
But it's not easy to unpack the role of the human genome. In some respects, it's like a material cause; in other respects, like an efficient cause. But when it's seen as an efficient cause, it's actually the person who is at work. One thing is sure. The person is there from the moment of conception, i.e., from the moment the new DNA emerges from the union of the egg and the sperm.