Subject: "Fetal personhood"
How do proponents of "fetal personhood" and "life begins at conception" handle identical twins?  Identical twins have the same exact DNA. The formation of the twins happens AFTER conception, so clearly, the fusing of the sperm with the egg could not be the cause of "ensoulment".

From https://www.genome.gov/genetic...

Identical twins (also called monozygotic twins) result from the fertilization of a single egg by a single sperm, with the fertilized egg then splitting into two. Identical twins share the same genomes and are always of the same sex. In contrast, fraternal (dizygotic) twins result from the fertilization of two separate eggs with two different sperm during the same pregnancy. They share half of their genomes, just like any other siblings. Fraternal twins may not be of the same sex or have similar appearances.