Sickle cell anaemia is
Sickle cell anaemia is
- A
An autosomal linked dominant trait
- B
Caused by substitution of glutamic acid by valic acid in the $\beta$-globin chain of haemoglobin
- C
Caused by a change in $3$ base pairs of $DNA$
- D
Characterized by elongated sickle like $RBCs$ with a nucleus
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- [NEET 2017]