In the Name of Allah, Most Gracious, Most Merciful

SEX DETERMINATION

The sex of a foetus is determined by the nature of the sperm and not of the ovum. The sex of the child, whether female or male, depends on whether the 23rd pair of chromosomes is XX or XY respectively.

Primarily, sex determination occurs at fertilizationand depends upon the type of sex chromosome in the sperm that fertilizes an ovum. If it is an ‘X’ bearing sperm that fertilizes the ovum, the foetus is a female and if it is a ‘Y’ bearing sperm then the foetus is a male.

The Arabic word nutfah means a minute quantity of liquid and tumnaa means ejaculated or planted.

Therefore nutfah specifically refers to sperm because it is ejaculated.

The Qur’an says:

Here again it is mentioned that a small quantity (drop) of sperm (indicated by the word nutfatan min maniyyin) which comes from the man is responsible for the sex of the foetus.

Mothers-in-law in the Indian subcontinent, usually prefer having male grandchildren and often blame their daughters-in-law if the child is not of the desired sex.

If only they knew that the determining factor is the nature of the male sperm and not the female ovum!

If they were to blame anybody, they should rather blame their sons, not their daughters-in-law, since both the Qur’an and Science hold that it is the male fluid that is responsible for the sex of the child!