Yes.
A frog has a nucleus in matured RBC.
a rbc has no nucleus
Camel
camels have nucleus in their RBC's.
Nucleus is a large organell.Lackness of a nucleus gives a large space for haemoglobin.
They are cells that have or contain nucleus , as compared to RBC that are enucleated
Though RBC does not have organelles nor Nucleus it can live for about 120 with the help of the enzymes involved in glycolysis reaction , and remember the definition of cell , it is a living unit of life and rbc is living cell
You have about 25 trillions of RBC in your blood. They do not have nucleus in them and so no DNA. WBC has a nucleus and contains the DNA.
Mammalian RBC is always enucleated [Without nucleus] without any EXCEPTION The mammalian RBC is also biconcave and DISCOIDAL except Camel and Llama, which have Oval shaped RBC
Amphibians have red blood but it has a nucleus in the center of the cell unlike mammal red blood. Amphibians are cold-blooded.
RBC has no nucleus
mitochondria and nucleus