Question

HEY GUYS....

In most of the mammals, RBCs have
a) Nuclei
b) No nuclei
c) No mitochondria
d) both b and c

Please answer fast with appropriate reason....
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Answer 1

Answer:

no nuclei

Explanation:

The absence of a nucleus is an adaptation of the red blood cell for its role. It allows the red blood cell to contain more hemoglobin and, therefore, carry more oxygen molecules. It also allows the cell to have its distinctive bi-concave shape which aids diffusion. This shape would not be possible if the cell had a nucleus in the way. Because of the advantages it gives, it is easy to see why evolution would cause this to occur. However, since little is known about the genes the control enucleation, it is still not a fully understood process.