trisomía 21

trisomía 21

A genetically inherited form of mental retardation usually resulting from the inheritance of an extra autosome 21. Down syndrome individuals also typically are short and stocky in build with short appendages. They usually have broad round faces, saddle-shaped nose profiles, and thick tongues that are often stuck out of their mouths. The incidence of Down syndrome children goes up rapidly with the age of the mother, particularly after 40.

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Parte del discorso: sostantivo
Sinonimi: Down syndrome_₀
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Settore/Dominio: Antropologia
Categoria: Antropologia fisica
Company: Palomar College
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Trisomía-21

Archeologia; Evoluzione umana

A human clinical condition characterized by various abnormalities. It is caused by the presence of an extra copy of chromosome 21.

trisomía

Biologia; Biologia cellulare

A condition where a cell has an extra chromosome.

trisomía

Biologia; Genoma

Possessing three copies of a particular chromosome instead of the normal two copies. See also: cell, gene, gene expression, chromosome.

trisomía

Biologia; Generale

A condition where a cell has an extra chromosome.

enfermedad endémica

Antropologia; Antropologia fisica

A disease that remains at a more or less constant frequency of affected individuals in a population all of the time. Examples: hypertension, tooth decay, and malaria.

polimorfismo

Antropologia; Antropologia fisica

A genetic trait controlled by more than one allele, each of which has a frequency of 1% or greater in the population gene pool. See balanced polymorphism.

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Antropologia; Antropologia fisica

A radiometric dating method based on the fact that trace amounts of radioactive atoms, such as uranium and thorium, in some kinds of rock, soil, and clay produce constant low ...

modelo de asimilación

Antropologia; Antropologia fisica

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potasio-argón

Antropologia; Antropologia fisica

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pedernal

Antropologia; Antropologia fisica

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michael.cen

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Settore/Dominio: Persone Categoria: Rappresentazioni storiche

Teresa Scanlan

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