This means that unlike mammalian RBCs, which lose their nucleus during development, reptile RBCs retain their nucleus throughout their lifespan.
Here's why this is important:
* Nucleus function: The nucleus contains DNA, which is essential for the cell's function and replication.
* Size and shape: Reptile RBCs are larger and more irregularly shaped than mammalian RBCs, which allows them to carry more oxygen.
* Oxygen carrying capacity: While the nucleated nature of reptile RBCs does slightly decrease their oxygen-carrying capacity compared to mammalian RBCs, it allows for greater flexibility in their shape and the ability to squeeze through smaller capillaries.
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