Human Chromosome 20

**Semantic type:** Cell Component

**Definition:** The designation for each member of the third smallest human autosomal chromosome pair. Chromosome 20 spans around 63 million base pairs and represents between 2 and 2.5% of the total DNA in normal diploid cells.

**Synonyms:** - Chromosome 20 - Chromosome 20 - Chromosome 20 - chr20 - chr20 - chr20