Biology
Grade-8
Easy
Question
A substitution mutation that has no effect on amino acids sequence
- Insertion mutation
- Translocation
- Silent mutation
- Deletion mutation
Hint:
In a silent mutation, the change in the DNA sequence of the gene has no effect on the amino acid sequence.
The correct answer is: Silent mutation
- A silent mutation is a type of substitution, or point, mutation, wherein the change in the DNA sequence of the gene has no effect on the amino acid sequence. For example, AAA (codes for the amino acid lysine, Lys) is mutated to AAG (which also codes for Lys).
- Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein.
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