A reversion event which restores the original DNA sequence.

the mutation of a plant or division from a more complicated state to a more natural state; the pigment change of a division from a variegated (or less pigmented) state to a solid-colored (more chlorophyll) condition.

A second mutation at the same site in a gene as the original mutation. The second mutation restores the wild-type nucleotide sequence.

A change in a descendant marker value back to its ancestral value.