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
Source:
National Human Genome Research
Institute
Cell - Chromosome abnormalities - Clastogenic effects - DNA - Genes
Español: Cromosoma
Français: Chromosome