Full Definition of progenitor 1a : an ancestor in the direct line : forefather
b : a biologically ancestral form2
: precursor, originator
Personally, I do not assign any DNA connection directly from Mary, the Mother of Jesus, to the embryonic being Who gestated in her womb. As such she is the biological surrogate to a conceptus COMPLETELY formed by God The Father and placed in Mary's womb by The Holy Spirit.
If one assigns half the chromosomes of Jesus to a gamete from Mary, she is more than a surrogate Mother. If one assigns no gamete chromosome origins to Mary then she is The surrogate Mother of Jesus ... and here's the part catholic boneheads will just thrill over ... if Mary is solely a surrogate to the God fashioned embryonic Jesus, she is the surrogate mother of the physical human body Jesus occupied during His earthly sojourn and is due no other honor than the blessed Mother of Jesus, The Jesus Who was and IS God with us.
The religion of catholiciism, as different from Christianity, seeks to assign to the Mother of Jesus titles and roles which God did not assign in His Word, The Bible. To do this sleight of hand the catholic hierarchy plays conflation games and duplicitous definition games. That's just plain dishonest when such titles and roles are not found anywhere in The Word of God, The Bible.
It is curious that catholics insist we 'prots' acknowledge that it is the Catholic Church (not the ekklesia of Jesus origins, begun in the profession of faith by Peter) which brought us all The Bible as we have it today, yet they cannot find even one clear passage which makes assignment of the titles the religion of modern catholiciism assigns to their Mary in adoration.
When Mary and her other children came to the house where Jesus was teaching and stood outside asking for an audience, it is revealing to see how Jesus responded. Had Mary been a real progenitor to Jesus as God, He would by Jewish law been obliged to honor her request. He, however, stated tot he attending crowd, who is my Mother, etc. when Jesus was dying in body on the Cross, since none of his brothers were there present with His Mother, He gave her care over to a disciple.
It was only AFTER the Resurrection that the brothers of Jesus fully believed in His Messiah identity! And why not, they knew Him as the oldest brother in the family and had even tried to persuade Him to stop with the making unrest among the people being ruled by Rome. After the Resurrection they knew without any doubt that He was much more than just a religious zealot who was their oldest brother ... He was God with them! And their lives thereafter reflect their certainty. Had James not been the brother of Jesus, I doubt the body of Jewish believers would have placed him as their leader in Jerusalem, since the Sanhedrin was hell-bent to persecute the Jewish zealotry. But James was a rock of faithfulness, and even the acknowledged leader when the Council in Acts takes place determining what would be the best way to relate with the gentiles coming to Christ.
Removing the family connection between Jesus and James as having the same Mother seems a foolish way to try and promote false titles and roles for their Mother. The Blessed Mother of Jesus was more than just the Mother of Jesus, she was the Mother of a couple of the pillars of Christian ekklesia!
One last note on the surrogacy of Mary: had God used a gamete from Mary to fashion the embryonic being of Jesus, that would have connected Mary to God the Holy Spirit in a way that would violate the marriage The Angel told Joseph to go ahead and finish rather than ‘putting her away’. Had half the chromosomes of Jesus come directly from His Mother, she would be an adulterer to finish the marriage to Jospeh because in catholic reasoning her first spouse IS still alive when she completes her marriage to Joseph.
You lost me at “the Religion of Catholicism as opposed to Christianity”
And a bit more, Brother.