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11/10/2021 9:35 pm
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Sickle cell anaemia is:
(1) characterized by elongated sickle like RBCs with a nucleus
(2) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin
(3) an autosomal linked dominant trait
(4) caused by a change in a single base pair of DNA
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11/10/2021 9:35 pm
Correct answer: (4) caused by a change in a single base pair of DNA