OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is an example of a missense mutation?
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a nucleotide and its partner are replaced with an “incorrect” pair of nucleotides which destroys the function of the final product.
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a nucleotide pair is added into a gene destroying the reading frame of the gene
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a frameshift mutation occurs, causing a nonfunctional protein
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a nucleotide pair substitution occurs, which causes a codon to code for an amino acid that may not be the “correct” one, although translation continues
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Explanation:
Detailed explanation-1: -A striking example of a frameshifting missense suppressor is a mutant lysine tRNA that differs from wild-type lysine tRNA by only a single base in the amino acid acceptor stem, a C to U70 transition that results in a G.U base pair.
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