Q92: Other trisomies and partial trisomies of the autosomes, not elsewhere classified

Q92.7: Triploidy and polyploidy

Somatic cells usually hold a complete blueprint of your body. This blueprint consists of genetic information. The genetic information is encrypted in the chromosomes. In humans, somatic cells usually have 23 pairs of chromosome, so 46 chromosomes in all. Apart from the male sex chromosomes, each chromosome is normally present twice per cell.

However, the chromosomes may be present in the cells more than twice. This change in genetic information usually has serious health effects.