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This likely has far more to do with IVF than with cloning. In humans, IVF is only 20-30% successful on the first attempt and these days it’s strongly recommende
by mdorazio 3y ago
This likely has far more to do with IVF than with cloning. In humans, IVF is only 20-30% successful on the first attempt and these days it’s strongly recommended to only try one embryo at a time. Based on the numbers quoted it looks like they did 5 at a time per monkey which decreases survival rates even more. Add in average miscarriage rates in humans of 10-20% (increases with age) and this experiment doesn’t look all that bad to me.
- o11c 3y ago¾ of 109 embryos across 21 mothers is 3.8 embryos per mother. For human miscarriage rates, remember it depends heavily on how far along the pregnancy is: 70% of conceptions lead to miscarriage 50% of implantations lead to miscarriage 30% of aggressively confirmed pregnancies lead to miscarriage 15% of typical confirmed pregnancies lead to miscarriage