It's simply a fact, like hair being blond or eyes being blue.

[He definitely wasn't very sensitive about it. But he leaned forward to eagerly explain to Rin.]

You could consider it an asexual method of reproduction. If you were to take an adult somatic cell and use it to fuse a nucleus-transplant cell to a recipient oocyte, then you could create a viable egg that would produce an organism with the all the genetic information of a singular parent.

[Would Prompto save her or save himself?]