Which statement accurately describes how a frameshift mutation affects a gene?
Single choice. Which statement accurately describes how a frameshift mutation affects a gene?. Single choice. It will change a single nucleotide in a mutant gene compared to the normal gene.
How does frameshift mutation affect gene expression?
If a mutation disrupts this normal reading frame, then the entire gene sequence following the mutation will be incorrectly read. This can result in the addition of the wrong amino acids to the protein and/or the creation of a codon that stops the protein from growing longer.
What is a frameshift mutation and how does it affect the protein?
A frameshift variant occurs when there is an addition or loss of nucleotides that shifts the grouping and changes the code for all downstream amino acids. The resulting protein is usually nonfunctional. Insertions, deletions, and duplications can all be frameshift variants.
Which of the following describes a frameshift mutation?
Which of the following describes a frameshift mutation? Explanation: A frameshift mutation indicates that the reading frame of the sequence in altered, resulting in production of different codons downstream of the mutation.
Which of the statements applies to frameshift mutations?
Which of the statements applies to frameshift mutations? Frameshift mutations change the amino acid sequence downstream from the site of the mutation.
The different types of mutations | Biomolecules | MCAT | Khan Academy
What is a frameshift mutation quizlet?
A frameshift mutation (also called a framing error or a reading frame shift) is a genetic mutation caused by indels (insertions or deletions) of a number of nucleotides in a DNA sequence that is not divisible by three.
Which of the following events could result in a frameshift mutation?
A frameshift mutation can occur if the DNA polymerase leaves out a nucleotide or adds an extra nucleotide to the sequence.
What is frameshift mutation example?
A type of gene mutation in which the addition or deletion of one or more nucleotide(s) causes a shift in the reading frame of the codons in the mRNA, which may lead to the alteration in the amino acid sequence at protein translation is known as frameshit mutation.
Which of the following describes a frameshift mutation Mcq?
Which of the following describes a frameshift mutation? Explanation: A frameshift mutation indicates that the reading frame of the sequence in altered, resulting in production of different codons downstream of the mutation.
Which of the following is an example of frameshift mutation?
The correct answer is (e) a deletion of one nucleotide.
How does a frameshift mutation affect protein function quizlet?
How does a frameshift mutation affect protein function? a. Protein function is most likely inhibited because an entirely new amino acid sequence occurs downstream of the mutation.
How does a frameshift mutation affect reading frame quizlet?
They’re called frameshift mutations because the reading frame is essentially shifted. The editing of a codon causes the reading frame to shift resulting in a different amino acid.
What effect does a frameshift mutation have on a strand of DNA?
The outcome of a frameshift mutation is complete alteration of the amino acid sequence of a protein. This alteration occurs during translation because ribosomes read the mRNA strand in terms of codons, or groups of three nucleotides. These groups are called the reading frame.
Why do frameshift mutations have a greater effect?
Also frameshift mutations have a greater effect than point mutations because it throws off the reading frame since codons code for different amino acids. Another point is that frameshift mutations have a greater effect than point mutations because insertion and deletion are stronger than substitution.
Why is a frameshift mutation more damaging than a substitution?
1 Answer. Frameshift mutations completely alter the entire protein sequence that occurs after the mutation, whereas a substitution only alters a single amino acid.
What are two kinds of frameshift mutations?
Frameshift mutations occur in two types – insertion mutations and deletion mutations. The overall effect of both is similar – the translational reading frame is “shifted” out of alignment, resulting in a random amino acid sequence.
Where does frameshift mutation happen?
A frameshift mutation is produced either by insertion or deletion of one or more new bases. Because the reading frame begins at the start site, any mRNA produced from a mutated DNA sequence will be read out of frame after the point of the insertion or deletion, yielding a nonsense protein.
What situation results from a frameshift mutation quizlet?
What situation results from a frameshift mutation? One or two nucleotides are added or deleted in a DNA strand. Amino acids are assembled into normal, functional proteins. The DNA is always modified in such a way that protein synthesis is prevented.
Which of the following mutations would cause a frameshift mutation quizlet?
deletion (one base is removed from the DNA sequence) cause a change in the order of codons that bring about change in the mRNA translation, unlike substitution, these mutations are classified as frameshift mutations.
How is a frameshift mutation different from a point mutation quizlet?
A frameshift mutation is an insertion or deletion of a nucleotide base that changes the reading frame. A point mutation does not change the frame and only changes one amino acids.
Why is it called a frameshift mutation?
Thus, if a mutation, for example, an insertion or a deletion of the nucleotide, occurs, this could result in the alteration of the reading frame. It completely changes the amino acid sequence. Such mutations are known as frameshift mutation (also called reading frame mutation, reading frame shift, or framing error).
Which statement correctly compares the impact of frameshift mutations and point mutations on Polypetitides?
Which statement correctly compares the impact of frameshift mutations and point mutations on polypeptides? Point mutations have a greater impact because they always change the resulting protein.
How does a frameshift mutation in the gene coding for the enzyme Hexosaminidase a result in Tay Sachs disease quizlet?
How does a frameshift mutation in the gene coding for the enzyme, hexosaminidase A, result in Tay-Sachs disease? The mutation does not alter production of the enzyme. The mutation prevents synthesis of the enzyme.
How do mutations affect genes quizlet?
The effects of mutations on genes vary widely. Some have little or no effect; some produce beneficial variations. Some negatively disrupt gene function. Mutations often produce proteins with new or altered functions that can be useful to organsims in different or changing environments.
What does a gene mutation affect?
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.
