The association of sex determination in the fetus with the genetic makeup of the nucleus of the sperm that fertilizes the egg .. The secretion of the female reproductive system works to activate sperm cells



** Allah says **
- (Give to whomever he pleases females and give to whomever he pleases, or marry them male and female, and make whom he wills ungodly).
- (Only he knows to create a gentle expert).
- (and in your selves, do you not see).
- (not male as female).
- (And we have spent in this Quran to people of all kinds and man was the most controversial thing).
- "They do not come to you like anything, but we have brought you the truth and the best explanation."
- "If one of them preached to the female, his face was blackened, and he was like a tyrant who was ignorant of the people from the bad things he preached."
- (and argue those who disbelieve in vain to refute the truth).
- (He created you from the same one as a stable and warehouse).
Studying the stages of the fertilization process leads to attention to a subject in which there has been considerable confusion, namely sex determination in the fetus. The sex of the fetus is determined from the first moment of fertilization according to the genetic makeup of the nucleus of the sperm that fertilizes the egg. Both sperm and egg nuclei carry 23 pairs of chromosomes, including 22 chromosomes and one pair, which is responsible for determining sex, the sex chromosome and sperm. Either a note containing only the chromosome y, or female sperm Ie carrying the X chromosome, depending on the genetic structure of the nucleus of the fertilized egg produced by the union of nuclei is sex. If the genotype XX was the fetus daughter of God, and if the genetic makeup XY, the fetus born, God willing. Scientists have been able to differentiate between the sperm carrying the male sign (chromosome Y) from the other carrying the sign of femininity (chromosome X) as the sperm, which carries a male signal and a flash and a head in the fastest movement, reaching the egg in approximately 6 hours The semen, which carries the sign of femininity, does not have that luster and flash and is slow in motion and does not reach the egg after an hour or more.
There is a recent research shows that uterine contractions are primarily responsible for the withdrawal of semen into the uterus and it is clear from the above that the mirror does not play a role in determining the sex of the fetus that the Prophet peace be upon him in the following talk confirms the role of the mirror in that, saying "water man White and water mirror yellow If they actually meet in the man in the male, God willing, and if the woman in the man is a female, God willing.
This is OK, according to scientists, that the secretion of the female reproductive system works to activate the sperm and thus help sperm to withdraw sperm and access to the egg faster and there is a greater chance for the sperm carrying the chromosome male fertilize the egg, if the discharge of semen before the man before Vaginal secretions are discharged during intercourse and vice versa.
The scientific research in this field is still few and the talk is then purified of scientific metaphor and the answer remains one of the dark question. Who will determine the type and sex of the fetus? It is in the verse "did not light a sperm from my right hand and then it was a lethargic creature, and made him a couple male and female Is not that able to revive the dead."