Deletion or insertion of base pairs of DNA ca | vedclass

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(C) The deletion or insertion of base pairs of $DNA$ results in a frame-shift mutation.This occurs because the genetic code is read in triplets (codon

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Frame-shift

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(C) The deletion or insertion of base pairs of $DNA$ results in a frame-shift mutation.This occurs because the genetic code is read in triplets (codons).When one or two base pairs are added or removed,the entire reading frame of the $mRNA$ sequence downstream of the mutation is shifted.This leads to the translation of a completely different sequence of amino acids,often resulting in a non-functional protein.

Column-$I$	Column-$II$
$(1)$ Lethal mutation	$(a)$ Mutation caused by external factors
$(2)$ Spontaneous mutation	$(b)$ They are metabolic errors
$(3)$ Induced mutation	$(c)$ As a result the mutant dies
$(4)$ Biochemical mutation	$(d)$ Most of the mutations occurring in nature are of this type

Deletion or insertion of base pairs of $DNA$ causes which type of mutation?

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