Mutation

A mutation is the permanent alteration of the nucleotide sequence of the genome of any being. Mutations result from damage to DNA data - which then may undergo error-prone repair, or cause an error during other forms of repair.

In trolls, mutations are classed under three main sub-types; detrimental mutations, beneficial mutations, or benign mutations.

Detrimental mutations
A detrimental mutation is a mutation that causes unfavourable effects in the mutated troll, or mutant, and/or would contribute to unfavourable effects in future broods were the mutant to contribute to the incestuous slurry. Detrimental mutants are liable for culling.

Common detrimental mutations include but are not limited to;
 * A lack of eyes or other sensory organs
 * Deafness, blindness, or any other form of disfunction of sensory organs
 * Any limbs failing to grow, or the deformation of any limbs to the extent to which they no longer operate correctly
 * Blood mutations which cause confusion of the hemospectrum

Beneficial mutations
A beneficial mutation is a mutation which adds to or enhances a mutant's abilities.

Common beneficial mutations include but are not limited to;
 * Psychic mutations
 * Telekinesis-class
 * Communion-class
 * Beam-class

Benign mutations
A benign mutation is one with no know negative or positive effects on the life or abilities of the mutant.

Common benign mutations include but are not limited to;
 * Pigmentation anomalies, including melanism, albinism and vitiligo
 * Abnormal pupil formations
 * Abnormal sclera colouration

Sea dwellers
Main article: Sea dwellers

Sea dwellers are a race of trolls whose existence can be traced back to mutation. Their mutations result in physical traits similar to those of fish, including fins and gills (complete with the ability to filter oxygen out of water). These mutations are for the most part uniform across the race.