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Sickle-cell anaemia is caused due to the...

Sickle-cell anaemia is caused due to the substitution of :

A

Valine by glutamic acid at sixth position of alpha chain of heamoglobin

B

Valine by glutamic acid at sicth position of beta chain of haemoglobin

C

glutamic acid by valine at sixth position of alpha chain of haemoglobin

D

glutamic acid by valine at sixth position of deta chain of haemoglobin

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The correct Answer is:
D
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