The current list can be easily accessed on both the IOC and World Anti-Doping Agency (WADA) websites (www.wada-ama.org or www.olympic.org) The use of gene doping or gene transfer technology to improve ...

Scientists have produced gene-edited animals they say could serve as "super dads" or "surrogate sires". The pigs, goats, cattle and mice make sperm carrying the genetic material of donor animals.