They would not be able to tell her parantage unless they had her father’s DNA to compare it to.Like I said before, the story Casey told her Mother of Caylee’s Dad being dead I think was to cover for the fact that she did not know who she belonged to.If you are a party girl sleeping with whoever whenever it’s likely she did not know anyone’s last name so finding daddy would prove to be hard in that case....
They are not able to tell who her father is, but they can use the DNA to tell who it isn’t.
The do have mitochondrial DNA from Caylee from a hairbrush. Not sure if they have any other. Supposedly there was none on the duct tape, but there were bones.