I was reading The Economist. They were discussing the Science of sex, but the angle that I found interesting was the selection of a fertilized embryo. A number of eggs were fertilized with the sperm of one male. The eggs may be from multiple women. The task was to select the best fertilized egg and implant that into a womb and discard the rest.
Or we can recreate “The Boys From Brazil” and implant all of the fertilized eggs, the female genes will have no contribution.