ahmadjee,
Afraid I don't have links, but a cut & paste from an e-mail discussion I had with a very knowledgable person on the topic. He's a Jewish Convert and is like minded in rejecting hadith because he can even identify what exactly has been borrowed from his previous religion..
Anyways, here's his take on the issue. It might be food for thought.
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Allah can and will do whatever He wills but as is the case with every miracle there is usually a scientific explanation for it; if not, it simply means that we have not found it yet.
There are certain children born with an undistinguishable sex they are hermaphrodites and look mostly female at birth and could grow in either direction into a boy or a girl. However some of these are klinefelters.
Men have XY chromasomes, women have XX chromasomes kleinfelters have XXY.
Technically a klienfelter is male because of the presence of the Y chromasome. However a hermaphrodite kleinfelter could grow either way into a male or female.
Usually a kleinfelter hermaphrodite would grow up to be sterile, but there is such a phenomenon as parthenogenesis. In parthenogesis temperature and chemicals are used to induce an ovum to develop into a new individual without fertilisation.
If the right conditions for parthenogesis were present then could a kleinfelter's ovum develop into a baby without fertilisation?
As in homogenesis in invertebrate forms of life, such a baby would have to be female, but only if the mother was a kleinfelter could the Y chromosome be present to make the baby into a male.
This brings us to an interesting point.
Why does the Quran in chapter 3 verse 36 interject Mary's mother's exclaimation that she had given birth to a girl to state that Allah knows what she gave birth to.. and that "the male not being as the female"??
[Al-Imran 3:36] So when she brought forth, she said: My Lord! Surely I have brought it forth a female -- and Allah knew best what she brought forth -- and the male is not like the female, and I have named it Marium, and I commend her and her offspring into Thy protection from the accursed Shaitan.
could there be a clue here that the child Mary was in fact an hermaphrodite kleinfelter being technically male not the same as a normal female because of the presence of a Y chromasome?
Allah Knows Best