Genetic polymorphism. Edit 0 2 â¦. A genetic polymorphism is the existence of two or more variants-which may be allelic, phenotypic, chromosomal or general DNA sequence variants-at significant frequencies in a population. A frequency of 1% or more is generally considered to be a polymorphism.Types of polymorphism include:enetic polymorphism. Edit 0 2 â¦. A genetic polymorphism is the existence of two or more variants-which may be allelic, phenotypic, chromosomal or general DNA sequence variants-at significant frequencies in a population. A frequency of 1% or more is generally considered to be a polymorphism.
Failure to consider the statistical nature of material chemical compositions andprocesses can lead towriting unrealistic heattreating specifications. To achieve consistent results that meet the specification after heattreatment, the specification must includetolerances that are achievable on acommercial basis.
What happens to substances or materials that undergo physical and chemical changes? That depends on which change. Physical changes may result in a change in appearance, but never a change in composition. Ripping, folding, melting, boiling, dissolving, and câ¦rumpling are examples of physical changes. After all of these, the substance is still made of the same atoms/elements. A chemical change will change both the appearance and composition of the matter. Examples of this are burning and reacting with acid.