(a) frameshift mutation
(b) mis-sense mutation
(c) non-sense mutation
(d) reverse mutation
[CBSE AIPMT 1997]
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A mutation at one base of the first codon of a gene produces a non-functional protein. Such a mutation is referred as
A mutation at one base of the first codon of a gene produces a non-functional protein. Such a mutation is referred as
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Correct Option (b) Reason : If mutation at one base of the first codon of a gene takes place then all the subsequent codons will be out of register (genetic code). This results into the formation of mis-sense protein which is formed due to the mutation in the first base of first codon and thus called missense mutation.