A) only Human RBCs have haemoglobin
B) Human RBCs have more nuclei
C) Human RBCs are without nucleus
D) Frog RBCs are without nucleus
Correct Answer: C
Solution :
The chief difference between RBCs of human and Frog is that the human RBCs are without nucleus and therefore is not a complete cell. However, the absence of nucleus in mammals increases respiratory efficiency of RBCs.
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