Mutation can result in several different types of change in sequences. Mutations in genes can either have no effect, alter the product of a gene, or prevent the gene from functioning properly or completely.Mutations can also occur in nongenic regions.n biology, a mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.
Achromatic means literally âwithout colorâ. It can also refer to: Achromatic colors, âgreysâ or âneutral colorsâ, also black. Achromatic lens, a lens designed to minimize chromatic aberration. Achromatic vision: Monochromacy (total color blindness) Achromatopsia. Monochrome.
A scotoma (Greek ÏÎºÏÏÎ¿Ï/ skotos, skÃ³tos; darkness: plural scotomas or) scotomata is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of â normal or relatively-well â preserved. vision scotoma can be a symptom of damage to any part of the visual system, such as retinal damage from exposure to high-powered lasers, macular degeneration and brain damage. The term scotoma is also used metaphorically in several fields.