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

natural selection

Archaeology; Evolution

The differential survival and reproduction of classes of organisms that differ from one another in one or more usually heritable characteristics. Through this process, the forms of organisms in a ...

haploid

Archaeology; Evolution

The condition of having only one set of genes or chromosomes. In normally diploid organisms such as humans, only the gametes are haploid.

biological species concept

Archaeology; Evolution

The concept of species, according to which a species is a set of organisms that can interbreed among each other. Compare with cladistic species concept, ecological species concept, phenetic species ...

cladistic species concept

Archaeology; Evolution

The concept of species, according to which a species is a lineage of populations between two phylogenetic branch points (or speciation events). Compare with biological species concept, ecological ...

genetic code

Archaeology; Evolution

The code relating nucleotide triplets in the mRNA (or DNA) to amino acids in the proteins.

amphibians

Archaeology; Evolution

The class of vertebrates that contains the frogs, toads, newts, and salamanders. The amphibians evolved in the Devonian period (about 370 million years ago) as the first vertebrates to occupy the ...

sex chromosome

Archaeology; Evolution

The chromosome or chromosomes that influence sex determination. In mammals, including humans, the X and Y chromosomes are the sex chromosomes (females are XX, males XY). Compare with autosome.