célula sexual

célula sexual

Gameto, que puede ser un espermio o un óvulo. Las células sexuales son producidas mediante el proceso de meiosis y tienen un número haploide de cromosomas. Ver célula somática.

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Loại từ: noun
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Ngành nghề/Lĩnh vực: Anthropology
Category: Physical anthropology
Company: Palomar College
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célula

Electrical equipment; Power supplies

Unidad capaz de servir como fuente de tensión de corriente directa (CD) a través de la transferencia de iones en el transcurso de una reacción química.

célula

Archaeology; Evolution

The basic structural and functional unit of most living organisms. Cell size varies, but most cells are microscopic. Cells may exist as independent units of life, as in bacteria ...

célula

Anthropology; Physical anthropology

A complex unit of protoplasm, usually with a nucleus, cytoplasm, and an enclosing membrane. All plants and animals are composed of one or more microscopic cells. The smallest ...

célula

Biology; Genetics

Fundamental structural unit of all life. The cell consists primarily of an outer plasma membrane, which separates it from the environment; the genetic material (DNA), which ...

célula

Biology; Genome

The basic unit of any living organism that carries on the biochemical processes of life. See also: genome, nucleus.

enfermedad endémica

Anthropology; Physical anthropology

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

Anthropology; Physical anthropology

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.

termoluminiscencia (TL)

Anthropology; Physical anthropology

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

Anthropology; Physical anthropology

A hypothesis to explain the origin of modern Homo sapiens. It proposes that the first modern humans evolved in Africa, but when they migrated into other regions they did not ...

potasio-argón

Anthropology; Physical anthropology

A radiometric dating method based on the fact that potassium-40 in volcanic rock decays into argon-40 and calcium-40 at a known rate. The half-life of potassium-40 is ...

pedernal

Anthropology; Physical anthropology

A kind of hard, rock with a glassy opaque appearance. It was a favorite raw material for many prehistoric humans for the manufacture of tools such as knives and scraping ...

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Ngành nghề/Lĩnh vực: Weather Category: Storms

ventisca

Una condición de mal tiempo se caracteriza por las bajas temperaturas, los vientos 35 mph o más, y la nieve cayendo suficiente y / o soplar en el aire ...