What Are the Different Types of Chromosome Disease?
Chromosome diseases are abnormalities that develop when there are errors on one or more of a person’s chromosomes. Such errors may include broken pieces, missing chromosomes, or extra chromosomes. Cells of the human body normally have 46 chromosomes or 23 pairs. Sex cells, which are referred to as gametes, normally have 23 chromosomes. Among the most common types of chromosome diseases are Down syndrome, trisomy 18, Turner syndrome, and Klinefelter syndrome. Down syndrome is a common type of chromosome disease. According to the March of Dimes, approximately one out of every 800 babies is born with Down syndrome. The number of fetuses affected may be higher than this, however, as many babies with this and other chromosomal abnormalities do not survive until birth.
