President Obama gave transgender Americans a notable mention in the SOTU. But lack of data is holding back policy that could help. In May, Orange is the New Black transgender star Laverne Cox appeared on the cover of Time. Earlier this month, Amazonâs âTransparent,â which focuses on a family with a transgender father, won the Golden Globe for best comedy series.
Chromosomal abnormalities are caused by errors in the number or structure of chromosomes. These errors in the number of chromosomes occur during cell division. There are two kinds of cell division. Mitosis results in two cells that are duplicates of the original cell. This kind of cell division occurs throughout the body, except in the reproductive organs.
1 Duplications: A portion of the chromosome is duplicated, resulting in extra genetic material. 2  Known disorders include Charcot-Marie-Tooth disease type 1A which may be caused by duplication of the gene encoding peripheral myelin protein 22 (PMP22) on chromosome 17. Deletions: A portion of the chromosome is missing or deleted. 2  Known disorders include Wolf-Hirschhorn syndrome, which is caused by partial deletion of the short arm of chromosome 4; and Jacobsen syndrome, also called the terminal 11q deletion disorder.