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Insertion of 3 base pairs at a random site in the genome can cause a frameshift.
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- Based on the given description, determine which mutation is being referred to A single base substitution such as UCC --> UGC a. silent b. insertion c. deletion d. transversion e. nonsense f. transitionA small section of a gene for a protein has the following nucleotide sequence: TAT AGG GAC CTA TGT Which of the following mutations would cause a missense mutation in the sequence shown above? a. Replacement of first cytosine base with guanine base b. Replacement of final thymine base with guanine base c. Replacement of second guanine base with cytosine base d. Replacement of first thymine base with adenine baseA small section of a gene for a protein has the following nucleotide sequence: CCT AAG GAT TCA CTT Which of the following mutations would cause a missense mutation in the sequence shown above? a. Replacement of first guanine base with cytosine base b. Replacement of first thymine base with cytosine base c. Replacement of second thymine base with adenine base d. Replacement of seond guanine base with adenine base
- n the triplet code, which of the following is true? A. Each DNA base codes for three proteins. B. Each amino acid in a protein is coded for by three bases in the DNA C. It takes three genes to code for one protein D. Each gene codes for three proteins. E. Each triplet has many different meanings.Which of the following mutations involve the loss of one or more nucleotides from a gene sequence? A. Deletion B. Insertion C. Base-pair substitutionA small section of a gene for a protein has the following nucleotide sequence: CTA TCC CCT ACG TCA Which of the following mutations would cause a silent mutation in the sequence shown above? a. Replacement of first thymine base with adenine base b. Replacement of second thymine base with guanine base c. Replacement of first cytosine base with guanine base d. Replacement of second adenine base with thymine base
- A small section of a gene for a protein has the following nucleotide sequence: GCT CTA GCT ATC TGA Which of the following mutations would cuase a silent mutation in the sequence shown above? a. Replacement of second adenine base with thymine base b. Replacement of first thymine base with adenine base c. Replacement of second guanine base with cytosine base d. Replacement of first cytosine base with guanine baseWhich of the following statements is correct? a. If a deletion and a duplication are the same size, the deletionis more likely to be harmful.b. If a deletion and a duplication are the same size, the duplicationis more likely to be harmful.c. If a deletion and a duplication are the same size, the likelihoodof causing harm is about the same.d. A deletion is always harmful, whereas a duplication is always beneficial.Which of the following mutations involve the loss of one or more nucleotides from a gene sequence? a.Base-pair substitution b.Insertion c.Deletion
- Which of the following mutations would have the greatest negative impact on the protein product of a gene? A. a single base deletion close to the end of the coding region of a gene. B. a single base insertion near the start of the coding region of the gene C. a base-pair substitution D. a deletion of three bases near the middle of the geneWhich of the following is not a DNA sequence? a. TAG b. AUGAUUCT d. AAAAAAAAAA e. CGGDefine the following terms:a. nonreplicative transpositionb. replicative transpositionc. composite transposond. retrotransposone. insertional element