NEET 2026 Biology question

The sixth mutant codon of beta globin gene causing polymerization of Haemoglobin and change in RBC shape is .

(1)GUGCorrect
(2)AUG
(3)GAG
(4)CAG

Answer: (1)

Solution

Sickle cell anaemia is caused by a single base substitution (A to T in the DNA, so GAG to GUG in mRNA) at the sixth codon of the beta globin chain, replacing glutamic acid by valine. The

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Question ID VK-104966