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What type of mutation results in a premature stop codon?
What type of mutation results in a premature stop codon?
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Practice Questions
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Q1
What type of mutation results in a premature stop codon?
Missense mutation
Nonsense mutation
Silent mutation
Frameshift mutation
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A nonsense mutation introduces a premature stop codon, leading to truncated proteins.
Questions & Step-by-step Solutions
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Q
Q: What type of mutation results in a premature stop codon?
Solution:
A nonsense mutation introduces a premature stop codon, leading to truncated proteins.
Steps: 6
Show Steps
Step 1: Understand what a mutation is. A mutation is a change in the DNA sequence.
Step 2: Learn about codons. Codons are sequences of three nucleotides in DNA that code for amino acids.
Step 3: Know what a stop codon is. A stop codon signals the end of protein synthesis.
Step 4: Identify the types of mutations. There are different types of mutations, including missense, nonsense, and silent mutations.
Step 5: Focus on nonsense mutations. A nonsense mutation is a specific type of mutation that changes a codon into a stop codon.
Step 6: Understand the effect of a nonsense mutation. When a stop codon appears too early, it results in a truncated (shortened) protein.
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