What are some factors that contribute to the constancy or change of a species' traits?

Question

Nathan Abbe · Accepted Answer

The DNA has many backup and buffering systems to catch and correct genetic errors for constancy but environmental stress can cause a change in the species traits.

The genetic laws established by Mendel demonstrate that no new information is produced in normal sexual or sexual reproduction. Cell theory states that cells produce cells that are identical to the parent cells. The information in DNA is protected in multiple ways that provide constancy in the traits of species. Errors and information loss can lead to changes in the traits of the species. Features that are better suited to the environmental changes will remain, while characteristics in the original population may disappear. Examples of traits that can change are those that allow the bacteria to resist antibiotics, which is a "sacrifice" of genetic information that allows the bacteria to survive in a "hostile" environment. Examples include the loss of eye tissue in blind cave fish and the weakening of red blood cells in sickle cell anemia, which allows the bacteria to resist the invasion of malaria. Information theory and DNA codes can be used to study the stability and evolution of a species' traits.

Aubrey Arnold · Answer

undefined Genetic mutations, environmental pressures, natural selection, reproductive strategies, gene flow, genetic drift, and random mating can influence the constancy or change of a species' traits.