Chromosome 9 (human)

Chromosome 9 (human)

Human chromosome 9 pair after G-banding.
One is from mother, one is from father.

Chromosome 9 pair in human male karyogram.
Length (bp) 138,394,717 bp
Number of genes 1,742
Type Autosome
Centromere position Submetacentric[1]
RefSeq NC_000009
GenBank CM000671
Map of Chromosome 9
Ideogram of human chromosome 9. Mbp means mega base pair. See locus for other notation.

Chromosome 9 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome, as they normally do with all chromosomes. Chromosome 9 spans about 138 million base pairs of nucleic acids (the building blocks of DNA) and represents between 4 and 4.5 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 9 likely contains between 800 and 1,200 genes.


The following are some of the genes located on chromosome 9:

Diseases and disorders

The following diseases are some of those related to genes on chromosome 9:


Wikimedia Commons has media related to Human chromosome 9.
  1. "Table 2.3: Human chromosome groups". Human Molecular Genetics (2nd ed.). Garland Science. 1999.
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