The alleged similarities between Qur'anic embryology and other pre-islamic sources is dealt with in the [URL="http://www.quranicstudies.com/articles/medical-miracles/does-the-quran-plagiarise-ancient-greek-embryology.html]this refutation[/URL].
There are two main issues I have with this discussion and the 'refutation'.
Firstly, there are some
generous interpretations of Quranic descriptions.
"Min Nutfah" implies that only a small number of the total cells produced by Nutfah
Nowhere does the Quran mention cells, this is conveniently implied at this point.
Linguistically, Al Maa-ad-Dafiq refers to a gushing, or self emitting fluid, or to a drop that is emitted out. In other words, it refers to a discharge that is self emitting, hence motile by itself. The use of microscope has shown that not only sperms, but the ovum also shows motility. The mature sperm is a free swimming actively motile germ cell consisting of a head and a tail. The tail provides motility to the sperm, and helps its transportation to the site of fertilisation.
Gushing fluid I can live with.
Describing the movement of sperm as 'self-emitting fluid' just doesn't work since
a) Sperm isn't a fluid, semen is, and semen is not motile.
b) Self-emitting does not mean motile. Try finding an example of these two words used interchangeably that isn't in an Islamic text... you won't, because they're not.
You have gone from 'gushing fluid' to 'motile gametes' by gradually changing the meaning of words since there is nothing of such detail in the text. Commentators routinely talk of cells, eggs and sperm when there is no such thing in the Quran, only 'fluids' in varying quantities.
"When forty two nights have passed over the Nutfah, Allah sends an angel to it, who shapes it and makes its ears, eyes, skin, flesh and bones. Then he says "0 Lord! Is it male or female?" And your Lord decides what He wishes and then the angel records it".
If after 42 night our Lord decides the characteristics and sex of a child is that going to make any difference to those determined at conception? Not likely.
Secondly, you're treating the earlier descriptions of development as if the authors were writing about something unknown in the way the Quran is supposedly doing. You might disagree with the wording of a description, or note the knowledge of processes is limited, but the works are based on experience. Physicians all around Europe, North Africa and the Middle East had been dissecting humans and animals for hundreds of years and documenting their findings.
It's a bit like an Amazonian native returning from trading with the outside world one day in 2008 and shortly afterwards declaring he has predicted the laws of planetary motion.