- Industry: Archaeology
- Number of terms: 25214
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The uppermost part of the windpipe, the sphincter guarding the entrance to the trachea and functioning as the sound-producing organ of the throat.
Industry:Archaeology
A sex chromosome present in two copies in the homozygous sex and in one copy on the heterozygous sex.
Industry:Archaeology
A sex chromosome that when present is found in one copy in the heterogametic sex, along with an X chromosome, and is not present in the homogametic sex. Not all organisms with sex chromosomes have a Y chromosome.
Industry:Archaeology
A mode of kinship reckoning whereby parallel and cross relatives are systematically distinguished; characteristically, but apparently not always, associated with a rule of symetrical alliance.
Industry:Archaeology
The first stage of meiosis. There are several stages of phophase I, including leptonema, zygonema, pachynema, diplonema, and diakinesis.
Industry:Archaeology
The last stage of meiosis II during which a nuclear membrane forms around each set of chromosomes, and cytokinesis takes place.
Industry:Archaeology
The second meiotic division, resulting in the separation of chromatids.
Industry:Archaeology
The second stage of meiosis during which the centromeres line up on the equator of the second-division spindles (in each of two daughter cells formed from meiosis I).
Industry:Archaeology
The second stage of meiosis during which there is chromosome contraction.
Industry:Archaeology
An Old World chronological period beginning around 10,000 years ago, situated between the Paleolithic and Neolithic, and associated with the rise to dominance of microliths.
Industry:Archaeology
