Mam I have a doubt that RBCs don't have nucleus then why they are living??

Answers (2)

@Aanchal

Red blood cells that is RBCs are initially produced in the bone marrow of the human's body with a nucleus. They then undergo a process known as enucleation in which their nucleus is removed. Enucleation occurs roughly when the cell has reached maturity. 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.

hope you got the point.

S Sonika

@Aanchal 

Nucleus is required for performing vital processes is true and that is why in the beginning RBC have nucleus. but ultimately every tissue gets specialised for performing their true function and the function of RBC is to carry haemoglobin. Now, to perform this function, RBC undergo enucleation so that they have more space to accomodate haemoglobin. 

having  a nucleus is not criteria of living, Viruses dont have nucleus but they can use other organisms's machinery to produce proteins required for it. Prokaryotes too do not have a proper nucleus, they just have chromatin material. still they are living. 

So what we can conclude is, the nucleus of RBC is exploited initially and later removed to perform the particular function.

 

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