hromozom

hromozom

One of the threadlike "packages" of genes and other DNA in the nucleus of a cell. Different species of organisms have different numbers of chromosomes. In sexually reproducing species, each parent contributes one chromosome of each pair, so offspring get half of their chromosomes from the maternal parent and half from the paternal parent. Bacterial cells do not possess a nucleus, therefore their chromosomes are located in the cellular cytoplasm.

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Industry/Domain: Natural environment
Category: Coral reefs
Organization: NOAA
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X hromozom

Biology; Genome

One of the two sex chromosomes, X and Y. See also: Y chromosome, sex chromosome.

protein

Natural environment; Coral reefs

A large complex molecule made up of one or more chains of amino acids. A typical protein contains 200-300 amino acids but some are much smaller and some much larger, e.g., titin, ...

emigracija

Natural environment; Coral reefs

The movement of individuals out of a population or from one area to another.

metrički sistem

Natural environment; Coral reefs

A decimal system of measures and weights with the meter and the gram as bases.

poliginija

Natural environment; Coral reefs

The mating of a single male with several females.

hemijska evolucija

Natural environment; Coral reefs

The chemical changes that transformed simple atoms and molecules into the more complex chemicals needed for the origin of life.

endoparazit

Natural environment; Coral reefs

A parasite which lives in the internal organs of its host.

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Industry/Domain: Animals Category: Snakes

kobra

A highly venomous snake from the elapidae family native to Asia and Africa. When alarmed, a cobra raises its head and expands the skin of the neck to ...