Evolution

Evolution

Of or pertaining to the change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.

Industry: Archaeology

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Evolution

Frequency-dependent selection

Archaeology; Evolution

Selection in which the fitness of a genotype (or phenotype) depends on its frequency in the population.

Molecular geneticists

Archaeology; Evolution

Scientists who study genes and characters through work with the molecules that make up and interact with DNA.

Geographic speciation

Archaeology; Evolution

See allopatric speciation.

Substitution

Archaeology; Evolution

The evolutionary replacement of one allele by another in a population.

Transformism

Archaeology; Evolution

The evolutionary theory of Lamarck in which changes occur within a lineage of populations, but in which lineages do not split (i.e., no speciation occurs, at least not in the sense of the cladistic ...

Cretaceous

Archaeology; Evolution

The final geological period of the Mesozoic era that began 144 million years ago and ended 65 million years ago. The end of this period is defined most notably by the extinction of the dinosaurs in ...

Penicillin

Archaeology; Evolution

The first antibiotic discovered, penicillin is derived from the mould Penicillium notatum. It is active against a wide variety of bacteria, acting by disrupting synthesis of the bacterial cell wall.