Scientists who want to create a human embryo with genetic material from two mothers are given the go ahead by Britain.

Scientists from Britain's Newcastle University plan to transfer the pro-nuclei - the components of a nucleus of a human embryo - by a man and woman into an unfertilized egg from another woman to prevent mothers passing certain genetic diseases to their unborn babies, reports The Associated Press.

The application was initially rejected because of legislation prohibiting the alteration of the genetic structure of a cell while it is forming part of an embryo, the Human Fertilization and Embryology Authority says in a statement Thursday. The authority is a government body that regulates fertility treatment and research.

The scientists eventually are given permission after a review of the legislation.

The research could eventually lead to techniques that might prevent the transmission of genetic defects, researchers say.

"While the proposed technique has been found to be safe in animal embryos, it will be very important to determine whether it can safely be used in human eggs," university spokesman Mick Warwicker says.