Gene mutation

A change in the nucleotide sequence of the DNA within a gene; a gene in which such a change has occurred is known as a mutant gene or allele. The DNA sequence can be altered in ...

mutation

Natural environment; Coral reefs

Changes in the nature of single genes or segments of chromosomes, which are then inherited by successive generations.

mutation

Health care; Flu prevention & treatment

Any alteration in a gene from its natural state. This change may be disease causing or a benign, normal variant. Specific mutations and evolution in influenza viruses cannot be ...

mutation

Archaeology; Evolution

A change in genetic material that results from an error in replication of DNA. Mutations can be beneficial, harmful, or neutral.

interstitial wear

Archaeology; Human evolution

See interproximal wear.

one gene-one enzyme hypothesis

Archaeology; Human evolution

The hypothesis, based on Beadle and Tatum's studies in biochemical genetics, that each gene controls the synthesis of one enzyme.

formation processes

Archaeology; Human evolution

Those processes affecting the way in which archaeological materials came to be buried, and theirsubsequent history afterwards. Cultural formation processes include the deliberate ...

subspecies

Archaeology; Human evolution

A geographically defined aggregate of local populations which differs with various degrees of significance (depending on the author) from other such subdivisions of the species.

variance

Archaeology; Human evolution

A statistical measure of how values vary from the mean. See also standard deviation.

euchromatin

Archaeology; Human evolution

Chromatin that is condensed during division but becomes uncoiled during interphase.

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Industry/Domain: Military Category: General military

Marine Corps Ball

The United States Marine Corps was founded on November 10, 1775. The Marine Corps birthday is celebrated annually in November with a ball (dance) and ...