Aspects to consider in the research process of the characteristics of rare trisomies and their prevalence.

Abstract

The investigation process should be refined gradually. There are few registered case studies of trisomies to date, which means a very large gap in genetic research. Chromosomal diseases represent a high degree of incidence in the world. Chromosomal disorders such as trisomies affect the entire population in general, among the rarest trisomies worldwide are: Trisomy (t) of chromosome 17p, t 10p, t 20p and mosaic t 9. Trisomy 20p and mosaic trisomy 9 achieved a global prevalence equivalent to 1 positive case per 1,000,000 live births and <1 per 1,000,000 live births.