Additions or deletions of bases in the nucleotide sequence of a structural gene most often result in
(A) an altered sequence of amino acids in the protein that the gene encodes
(B) insertion of a new intron into the coding sequence of the gene
(C) decreased histone binding
(D) decreased excision repair
(E) increased levels of mRNA production



Answer :

 option a ...an altered sequence of amino acids in the protein that the gene encodes 

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