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Mutations can occur when a nucleotide is accidentally inserted, deleted, or substituted in the process of replication or transcription. Use the codon chart below to determine what type of mutation is being described.Codon Chart by Becky Boone (CC BY 2.0)In a strand of mRNA, AAA is mutated into AAG.This would result in what type of mutation?Elimination ToolSelect one answerAFrameshift mutation.BMissense mutation.CNonsense mutation.DSilent mutation.

Question

Mutations can occur when a nucleotide is accidentally inserted, deleted, or substituted in the process of replication or transcription. Use the codon chart below to determine what type of mutation is being described.Codon Chart by Becky Boone (CC BY 2.0)In a strand of mRNA, AAA is mutated into AAG.This would result in what type of mutation?Elimination ToolSelect one answerAFrameshift mutation.BMissense mutation.CNonsense mutation.DSilent mutation.

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Solution

The mutation described is a point mutation, specifically a missense mutation. This is because only one nucleotide has been changed (AAA to AAG), and this change results in a different codon, which codes for a different amino acid. Therefore, the protein produced may have a different function or no function at all. This is different from a frameshift mutation, which would involve the insertion or deletion of a nucleotide, causing a shift in the reading frame of the mRNA. A nonsense mutation would result in a stop codon, ending protein synthesis prematurely, and a silent mutation would result in the same amino acid, despite the change in nucleotide. So, the correct answer is B. Missense mutation.

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Similar Questions

Different types of mutations can occur in DNA.  The diagram represents a type of mutation.Which statement describes the mutation in the diagram? ResponsesA silent mutation results in the insertion of a different amino acid.A silent mutation results in the insertion of a different amino acid.A base is inserted into one strand of the DNA.A base is inserted into one strand of the DNA.A deletion of a cytosine base occurs.A  deletion of a cytosine base occurs.A substitution occurs with the adenine base.

In a "silent" mutation, theMultiple Choicecodon that mutates causes a change in the amino acid specified.codon that mutates does not cause a change in the amino acid specified.codon that mutates causes a stop codon to occur instead of the placement of an amino acid.mutation does not occur in a codon.mutation is not in DNA.

A genetic mutation will cause all the following to occur EXCEPT —Select one:a.cause a protein to not have a stop codon.b.create a protein with an incorrect amino acid sequence.c.create a protein with a different mRNA sequence.d.always keep the same shape of the protein.

The original strand of DNA looks like this ACGTCTCGA. The mutated strand looks like this ACGTTCGA. What type of mutation is this?*1 pointTranslocationNucleotide base deletionNucleotide base insertionNucleotide base substitution

Original DNA:       AATCGCCAMutuated DNA:   AATCACCAWhat type of mutation is this? Pick all that apply ResponsesGene mutationGene mutationChromosome mutationChromosome mutationFrameshift mutationFrameshift mutationA point mutation

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