Sickle-cell anemia is an example of an inherited disease. Individuals with this disorder have misshapen (sickle-shaped) red blood cells caused by a change in the sequence of the ?-globin gene. What is the nature of the change?

(a) chromosome loss
(b) base-pair change
(c) gene duplication
(d) base-pair insertion


(b)

Biology & Microbiology

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What will be an ideal response?

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