Which type of mutation can result in a premature stop codon?
Practice Questions
Q1
Which type of mutation can result in a premature stop codon?
Silent mutation
Missense mutation
Nonsense mutation
Frameshift mutation
Questions & Step-by-Step Solutions
Which type of mutation can result in a premature stop codon?
Correct Answer: nonsense mutation
Step 1: Understand what a mutation is. A mutation is a change in the DNA sequence.
Step 2: Learn about different types of mutations. There are several types, including point mutations, insertions, deletions, and more.
Step 3: Focus on nonsense mutations. A nonsense mutation is a specific type of point mutation.
Step 4: Know what a stop codon is. A stop codon is a sequence in the DNA that signals the end of protein synthesis.
Step 5: Realize that a nonsense mutation changes a regular codon (which codes for an amino acid) into a stop codon.
Step 6: Understand the result of a nonsense mutation. It leads to a premature stop in protein synthesis, creating a shorter and often nonfunctional protein.
