Indian scientists find pregnancy 'switch' that allows an embryo to implant itself

For a pregnancy to begin, the embryo must first embed itself in the womb

- 

A study by the Indian Council of Medical Research seeking to explain how a pregnancy is initiated has led to the discovery of a 'genetic switch' that allows an embryo to implant itself on the wall of the womb, leading to conception.

For a pregnancy to begin, the embryo must first attach and embed itself in the wall of the mother's womb. But how this happens has remained a mystery.

The findings, published in the international journal