Physical anthropology

Physical anthropology

The branch of anthropology that studies the development of the human race in the context of other primate species.

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Physical anthropology

Pleistocene Epoch

Anthropology; Physical anthropology

The sixth geological epoch of the Cenozoic Era. The Pleistocene occurred approximately 1. 81 million to 10,000 years ago. This was mostly a time of world cooling punctuated by 3-4 major ice ages. ...

codominance

Anthropology; Physical anthropology

The situation in which two different alleles for a trait are expressed unblended in the phenotype of heterozygous individuals. Neither allele is dominant or recessive, so that both appear in the ...

The situation in which an allele is expressed only if certain factors are present in the environment. The triggering of genetically inherited diabetes by obesity and possibly severe emotional stress ...

pleiotropy

Anthropology; Physical anthropology

The situation in which a single gene is responsible for a variety of traits. The collective group of symptoms known as sickle-cell trait is an example.

genetic equilibrium

Anthropology; Physical anthropology

The situation in which a population is not evolving from generation to generation--that is, the population's gene pool frequencies remain unchanged.

mother-fetus incompatibility

Anthropology; Physical anthropology

The situation in which a mother's blood type is different from that of her unborn child. In the case of some combinations of types, the mother's blood system can produce antibodies to antigens on the ...

intermediate expression

Anthropology; Physical anthropology

The situation in which a heterozygous genotype results in a phenotype that is intermediate between those resulting from the homozygous genotypes. The mid-range baritone male voice is an example.