A mutation that adds or removes nucleotides, altering the reading frame
A mutation that occurs in non-coding regions
A mutation that duplicates a segment of DNA
A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, shifting the reading frame and potentially altering all downstream amino acids.
Questions & Step-by-step Solutions
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Q
Q: What is a frameshift mutation?
Solution: A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, shifting the reading frame and potentially altering all downstream amino acids.
Steps: 6
Step 1: Understand that DNA is made up of building blocks called nucleotides.
Step 2: Know that these nucleotides are read in groups of three, called codons, to make proteins.
Step 3: A frameshift mutation happens when one or more nucleotides are added or removed from the DNA sequence.
Step 4: This addition or deletion changes how the remaining nucleotides are grouped into codons.
Step 5: Because the grouping changes, the sequence of amino acids that are made can also change.
Step 6: This can lead to a completely different protein, which may not function properly.
