Which amino acid is required for haemoglobin?

Glu

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Val

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Ser

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All the above

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Solution

The correct option is D All the above
Haemoglobin is an oligoprotein which has four polypeptide chain, two alpha chain, and two beta chain. The alpha chain contains 141 amino acid and the beta chain contains the 146 amino acids. Mainly the amino acids present in the polypeptide chain are glutamine, valine, and serine.
So, the correct answer is option D.

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