trisomía

trisomía

A condition where a cell has an extra chromosome.

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Category: Cell biology
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Trisomía-21

Archaeology; Human evolution

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

trisomía 21

Anthropology; Physical anthropology

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 ...

trisomía 18

Anthropology; Physical anthropology

A rare chromosomal abnormality in which there is a trisomy of chromosome 18. This inherited condition is also called Edward's syndrome. It is characterized by severe mental ...

núcleo del átomo

Biology; Cell biology

An atom's core; contains protons and one or more neutrons (except hydrogen, which has no neutrons).

número atómico

Biology; Cell biology

The number of protons in the nucleus of an atom.

asma

Biology; Cell biology

A respiratory disorder caused by allergies that constrict the bronchioles by inducing spasms in the muscles surrounding the lungs, by causing the bronchioles to swell, or by ...

ascomicetos

Biology; Cell biology

Division of fungi that contains the yeasts and morels; ascomycetes produce an ascus (or sac) in which ascospores are produced.

selección artificial

Biology; Cell biology

The process in which breeders choose the variants to be used to produce succeeding generations.

reproducción asexual

Biology; Cell biology

A method of reproduction in which genetically identical offspring are produced from a single parent; occurs by many mechanisms, including fission, budding, and fragmentation.