Mutations

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

A point mutation is a change in a single nucleotide in the DNA sequence.

A frameshift mutation occurs when nucleotides are inserted or deleted from the DNA sequence, altering the reading frame.

A missense mutation is a type of point mutation that results in a different amino acid being incorporated into a protein.

A nonsense mutation is a point mutation that creates a premature stop codon, leading to a truncated protein.

A silent mutation is a change in the DNA sequence that does not alter the amino acid sequence of the protein.

Mutations can alter the amino acid sequence of a protein, potentially affecting its function.

Insertion mutations add one or more nucleotides to the DNA sequence, while deletion mutations remove nucleotides.

Some mutations can provide advantages, such as increased resistance to diseases or improved metabolic efficiency.

DNA repair mechanisms correct errors in the DNA sequence to prevent mutations from becoming permanent.