In the New 52, Powergirl and Supergirl are genetically identical enough to fool the Kryptonian bioscanner to the door of her own Fortress (underwater spaceship) BUUUUUT Powergirl is older than Supergirl. Dialouge in the comic (I am not being disgusting, this happened.) mentioned a huge difdference in breast size, that would be explained by one of them being 17 and the other 27.
I assume that that means that Powergirl came out of stasis from her interstellar trip from Krypton 5 years or more earlier than Supergirl did in Earth I's Universe.
I assume that that means that Powergirl came out of stasis from her interstellar trip from Krypton 5 years or more earlier than Supergirl did in Earth I's Universe.