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Which of the following best describes a frameshift mutation?

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Question: Which of the following best describes a frameshift mutation?

Options:

  1. A mutation that changes one amino acid
  2. A mutation that adds or removes nucleotides, altering the reading frame
  3. A mutation that duplicates a segment of DNA
  4. A mutation that occurs in non-coding regions

Correct Answer: A mutation that adds or removes nucleotides, altering the reading frame

Solution: 

A frameshift mutation occurs when nucleotides are added or removed from the DNA sequence, shifting the reading frame and altering the resulting protein.

Which of the following best describes a frameshift mutation?

Practice Questions

Q1
Which of the following best describes a frameshift mutation?
  1. A mutation that changes one amino acid
  2. A mutation that adds or removes nucleotides, altering the reading frame
  3. A mutation that duplicates a segment of DNA
  4. A mutation that occurs in non-coding regions

Questions & Step-by-Step Solutions

Which of the following best describes a frameshift mutation?
  • Step 1: Understand that DNA is made up of building blocks called nucleotides.
  • Step 2: Know that the sequence of nucleotides determines how proteins are made.
  • Step 3: Realize that the reading frame is like a set of instructions that tells the cell how to read the DNA sequence.
  • Step 4: Learn that a frameshift mutation happens when nucleotides are either added or removed from the DNA sequence.
  • Step 5: Understand that this addition or removal changes the reading frame, which can lead to a completely different protein being made.
No concepts available.
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