Question
To ask Her Majesty's Government further to the Written Answer by Lord Darzi of Denham on 19 March (WA 44) regarding signs representative of primitive streak formation being prevented by a lack of relationship between the trophectoderm and the inner cell mass, how this conclusion relates to data published in the journals Stem Cells (Volume 23, No 6, pages 805–816) and Biology of Reproduction(Volume 55, No 2, pages 254–259), whereby non-human primate embryonic stem cells grown at high densities were reported to exhibit behaviour consistent with early primitive streak formation.
Answer
The department has nothing further to add to the response of 19 March, as an embryo outgrowth is still not considered an embryo by the Human Fertilisation and Embryology Authority, nor would it develop if implanted in a woman.