Have you ever read an e-book and found that the text did not match what was in the published edition? A book in your hand cannot be changed from what the author intended.
How do you know who's DNA is in that embryo if one man and one woman did not create it?
Because that isn't how the science works. An embryo comes from the egg of a single human female, otherwise you'd have two or more embryos, each from a single egg of a single human female. An embryo is created when sperm fertilizes that egg. If two sperm fertilize the same egg you end up with 69 chromosomes and a higher chance of miscarriage, and to avoid this the egg actually haws two outer layer to help prevent this from happening.
Have you ever read an e-book and found that the text did not match what was in the published edition? A book in your hand cannot be changed from what the author intended.
How do you know who's DNA is in that embryo if one man and one woman did not create it?
Because that isn't how the science works. An embryo comes from the egg of a single human female, otherwise you'd have two or more embryos, each from a single egg of a single human female. An embryo is created when sperm fertilizes that egg. If two sperm fertilize the same egg you end up with 69 chromosomes and a higher chance of miscarriage, and to avoid this the egg actually haws two outer layer to help prevent this from happening.