Question

What do you mean by silent mutation?

Answer 1

A type of point mutation that results in a codon that codes for the same or a different amino acid but has no effect on the protein's function. A mutation occurs when the sequence of DNA changes. Mutations can occur as a result of DNA copying errors during cell division, exposure to ionising radiation, exposure to chemicals known as mutagens, or virus infection.

Complete answer:
A mutation occurs when the nucleotide sequence of a gene or chromosome changes. When only one nucleotide is implicated, the mutation is referred to as a point mutation. In noncoding regions, point mutations seldom result in a changed amino acid sequence during translation. However, if a mutation occurs in a gene's promoter sequence, the effect may be seen since the gene's expression may induce changes in the amino acid sequence, as well as the structure and function of the protein output.
Point mutations are characterised as (1) nonsense mutations, (2) missense mutations, or (3) silent mutations according to their functioning. A silent mutation is one that does not result in a noticeable alteration in the amino acid. As a result, the protein remains active. As a result, the modifications are thought to be evolutionarily neutral.
Silent mutations occur in non-coding areas or within exons, as opposed to synonymous mutations, which are more common within axons. The term "silent mutation" refers to mutations that have no phenotypic effect. Silent mutation is a point mutation that results in no change in the amino acid sequence of the protein. The new codon codes for the same amino acid as the old one. This is a mutation that goes unnoticed. It appears to be a simple process of adding amino acids one by one until a protein is formed. Which helps to explain why silent mutations are usually rather safe. They do not alter the amino acid that is added.

Note:-
A change or the process of change, such as in nature, form, or quality, is referred to as mutation. In biology, a mutation is a change in the nucleotide sequence caused by the system's failure to reverse the change. As a result, the changed sequence is both permanent and heritable. Smoking, sunshine, and radiation are all examples of environmental variables that might cause mutations.