NEET Biology question

Point mutation may occur due to

(A)Alteration in DNA sequence
(B)Change in a single base pair of DNACorrect
(C)Deletion of a segment of DNA
(D)Gain of a segment in DNA

Answer: (B)

Solution

A point mutation is specifically defined as a change involving a single base pair of DNA (a substitution, such as the GAG→GTG change causing sickle-cell anaemia). Deletion (c) or gain (d) of a whole segment describes

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Question ID VK-120349