No, they are made by magic and dont have DNA or blood or nothing alike.
Well neither does alien x but its in the watch or goop echo echo
Ok the part of Blood had nothing to do, but the thing is they are MADE of magic and magic cannot be scanned, and yes all the aliens you mentioned do not have blood but they have DNA
But gwen's ginte bug is just sumind
Here is the definitive answer were Derrick J. Wyatt says: https://ben10.fandom.com/wiki/File:Omnitrix_Cannot_Accept_Stone_Creature_DNA.png
But atleast now we know they do have DNA
What do you think?