But Mr Tonti-Filippini raised serious doubts the scientists, from the Mitsubishi Kasei Institute of Life Sciences, would succeed. There are components of an egg that are not in sperm that are essential to create an embryo. Unless they are going to add a lot more to the cells, they won't be able to do it. Peter Stokes, executive officer of Christian family group Saltshakers, said the proposal was bizarre. Mr Stokes said.
Every child deserves the opportunity of having a mum and dad.
No mum can make a good dad and no dad can make a good mum. The scientists made their prediction after revealing they had created the world's first laboratory-grown sperm. That feat paves the way for infertile men to produce genetic offspring. The technique, involving cloning embryo cells and turning them into sperm, is set for trials in humans. It was disclosed at a Japanese biologists conference and will be detailed in an international science publication this year.