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Chromosome

Definition:

One of the threadlike "packages" of genes and other DNA in the nucleus of a cell. Different kinds of organisms have different numbers of chromosomes. Humans have 23 pairs of chromosomes, 46 in all: 44 autosomes and two sex chromosomes. Each parent contributes one chromosome to each pair, so children get half of their chromosomes from their mothers and half from their fathers.

Source: NHGRI Talking Glossary of Genetic Terms 

More:
DNA

Source: National Human Genome Research Institute  (public domain)

Related words:

Cell - Chromosome abnormalities - Clastogenic effects - DNA - Genes

Translation(s):

Español: Cromosoma
Français: Chromosome

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