HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a deletion of a nucleotide in an intron
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a deletion of a nucleotide near the beginning of an exon
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a deletion of one nucleotide in the last codon of the last exon
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Detailed explanation-1: -A frameshift mutation is more likely to result in a nonfunctional protein.
Detailed explanation-2: -What kind of mutation is more likely to result in a nonfunctional protein, a frameshift (resulting from an insertion or deletion) or a point mutation? Silent mutation.
Detailed explanation-3: -Sometimes, gene variants (also known as mutations) prevent one or more proteins from working properly. By changing a gene’s instructions for making a protein, a variant can cause a protein to malfunction or to not be produced at all.
Detailed explanation-4: -Which type of substitution mutation has the greatest chance of leading to a nonfunctional protein? Explain your answer. A nonsense mutation has the greatest chance of producing a fully nonfunctional protein because it prematurely stops translation, thereby truncating the protein.