The Reproduction is a complex operation  that have need of a genetic parts and from two opposite-sex organisms in order to procreate. However, scientists in a first have pushed back the barriers for same-sex reproduction in humans.Needing genes from opposite-sex parents for reproduction only applies to mammals. However, certain breeds of female fish, reptiles, amphibians and birds can give birth alone – the scientific name for which is ‘parthenogenesis.’

Following this strain of reproduction, scientists in China took an egg from one mouse and a special type of cell – a haploid embryonic stem cell – from another.

However, simply combining these two cells wasn’t enough. The process required gene-editing, where the scientists deleted three sets of genetic instructions to make them compatible.

And the result? Healthy mice babies from two mice mothers.

The process was initially tried on with a double-dad approach, but the resulting offspring died within 48 hours of being born – the male process required editing of seven gene-codes.

Dr Teresa Holm, from the University of Auckland, thinks there is a chance of recreating this birth in othe  pecies in the long run. “It may even lead to the development of ways for same-sex couples to reproduce healthy children of their own,” she says.
But she points out there are “significant ethical and safety concerns that would need to be overcome.”

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Sophia Yan 嚴倩君

@sophia_yan

A team at the Chinese Academy of Sciences stunned geneticists by producing 29 healthy pups from two female parents with the help of editing. Next: Monkeys. Future: Humans?! Whoa! https://www.telegraph.co.uk/science/2018/10/11/needs-men-first-mammal-born-same-sex-female-parents-gene-editing/