Mutations

A mutation is a change in the DNA sequence.

A duplication mutation occurs when a segment of DNA is copied, resulting in multiple copies of that segment.

A translocation mutation involves the rearrangement of parts between nonhomologous chromosomes.

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

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

Insertions are mutations where one or more nucleotides are added to the DNA sequence.

Deletions are mutations where one or more nucleotides are removed from the DNA sequence.

A substitution mutation is a type of mutation where one nucleotide is replaced by another nucleotide.

A deletion mutation removes a segment of DNA, while a duplication mutation creates an extra copy of a segment.

An inversion mutation occurs when a segment of DNA is reversed within the chromosome.