Synthetic embryos grown from stem cells don’t need sperm or eggs
The tech could eventually be used to grow organs for transplant
Some of us are part-Neanderthal and it affects how medicines work on you
The gene variants are carried by 20% of present-day Europeans
Mice cloned from freeze-dried cells could improve species conservation
Currently, facilities referred to as “frozen zoos” are used to store samples of animal sperm, eggs and other tissues at cryogenic temperatures