Genetics Ques 4

Question: Sickle cell anaemia is

Options:

A) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin.

B) caused by a change in a single base pair of DNA.

C) characterized by elongated sickle like RBCs with a nucleus.

D) an autosomal linked dominant trait.

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Answer:

Correct Answer: B