
Sperm
Has anyone ever thought, before the Quran was revealed, that man’s nutfa, when ejected, is responsible for determining if the embryo will be male or female? Has this ever occurred to one’s mind? The Quran says;
“That He created the pairs, male and female, from a fluid-drop sperm as it is emitted.” (Quran 53: 45-46), confirming that man’s gender as male or female is determined when the sperm drop is emitted. Who told the Prophet Mohammed that the sperm (nutfa) with one of its types (Y) or (X) is responsible for determining the sex of the embryo?

Universe beginning
Astrophysics: Before the Big Bang, there was no such thing. There was a condition of non-existence in which neither matter, nor energy, nor even time existed, so it can only be described metaphysically, matter, energy, and time were all created.
In Quran: There was nonexistence until God (Allah) has created heavens and earth.
(All the praises and thanks are to Allâh, the (only) Originator (or the (only) Creator) of the heavens and the earth). (Quran 35:1)