Health / Medical Topics |
Chromosome 18
Definition 1
The designation for each member of the eighteenth largest human autosomal chromosome pair. Chromosome 18 spans about 76 million base pairs and represents about 2.5% of the total DNA in normal diploid cells. (NCI Thesaurus)
Definition 2
One of the three pairs in the fifth group (or group E) of human chromosomes according to the current classification for humans. (NLM, Medical Subject Headings)
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