Which of the following best describes a frameshift mutation?
Practice Questions
1 question
Q1
Which of the following best describes a frameshift mutation?
A mutation that changes one amino acid
A mutation that adds or removes nucleotides, altering the reading frame
A mutation that duplicates a segment of DNA
A mutation that occurs in non-coding regions
A frameshift mutation occurs when nucleotides are added or removed from the DNA sequence, shifting the reading frame and altering the resulting protein.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following best describes a frameshift mutation?
Solution: A frameshift mutation occurs when nucleotides are added or removed from the DNA sequence, shifting the reading frame and altering the resulting protein.
Steps: 5
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.
