Evolution is a process by which the genetic material of a population changes over time. Evolution cause the adaptations of organisms to their changing environments and can result of changing genes characteristics new traits, and new species. Evolutionary processes rely on the changes in genetic variability and on the changes in allele sequences over time.
Microevolution cause changes over time in DNA sequences and allele frequencies within a species. The changes occurs may be because of mutations, which is the process to introduce new alleles into a population. In addition, also by gene flow new alleles can be introduced in a population by which is occurs during breeding between two populations that carry unique alleles. In contrast with microevolution, it cause large changes at the species level, which is result from the accumulation of numerous small changes on the microevolutionary scale. The evolution of a new species an example of macroevolution.
- The evolution implies change with respect to time.
- The genetics is a major factor in evolution.
- Hardy-Weinberg formula state that population remain constant.