Researchers have generated in the lab mice with two dads.

(RT) ⸻ Scientists at a Japanese lab have produced healthy offspring from two male parents using a gene-editing technique to create viable egg cells from the skin. The breakthrough was reported on Wednesday by Professor Katsuhiko Hayashi from Osaka University during the International Summit on Human Genome Editing in London. The method involved reprogramming a skin cell into a pluripotent stem cell and creating copies of the X-chromosome to replace it. The result was of relatively poor quality, with just seven pups coming out of 630 attempts to implant fertilized embryos into surrogate mothers. However, the method does give hope to same-sex couples that they may be able to have children who are genetically linked to them, although such kind of reproduction would first have to be accepted by society.