He is responsible for one of the most frequently cited estimates of the transgender population â 700,000, about 0.3 percent of U.S. adults. That figure is based on data from two surveys. One, conducted in Massachusetts in 2007 and 2009, found that 0.5 percent of respondents ages 18 to 64 identified as transgender.
Causes of Crohnâs Disease. The causes of Crohn's disease are not known. Diet and stress were once believed to be responsible. However, we now know that these may aggravate the disease, but they do not cause it.Research suggests that a malfunctioning immune system, genetics, and environment may be factors in the development of the disease.mmune System. A main characteristic of Crohnâs disease is chronic inflammation. Inflammation is a normal immune system response to outside invaders such as viruses, bacteria, and parasites. Some researchers believe that Crohnâs disease may start as a normal response to an outside invader.
Each of these mutations can cause a variety of different diseases and conditions. Read on to learn what these mutations are and what disorders they can cause. slide 1 of 8. The causes of chromosomes mutation occur when there is any change in the arrangement or structure of the chromosomes.These mutations occur most often during meiosis during the stage when crossing over occurs. There are several different mutation types that result in chromosomal structure change.This change in structure leads to serious changes in an organisms' phenotype and genotype. If essential parts of the DNA are affected by chromosomal mutations, a foetus can be aborted prior to birth without the mother's control.ach of these mutations can cause a variety of different diseases and conditions. Read on to learn what these mutations are and what disorders they can cause. slide 1 of 8. The causes of chromosomes mutation occur when there is any change in the arrangement or structure of the chromosomes.