NEET Biology question

If the DNA codons are ATG ATGATG and a cytosine base is inserted at the beginning, then which of the following will result?

(A)CATG ATGATG
(B)CAT GAT GATGCorrect
(C)A nonsense mutation
(D)CA TGA TGA TG

Answer: (B)

Solution

Inserting a cytosine at the very start of ATGATGATG gives CATGATGATG; because the ribosome reads the message in fixed triplets from a new start point, this

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Question ID VK-120520