Ryan

Ryan
=Cri-du-chat Syndrome= Cri-du-chat syndrome is the deletion of part of chromosome 5 which would make this an autosomal disorder. So this person would have 45 and a peice of a chromosome and about 20% is usually deleted off the short arm of the chromosome. This disorder is very rare and only occurs in 1 out of 50,000 live births and a ratio of 4:3 (female to male). 90% of people get this disorder randomly, but 10-15% get it from unequal segregation of parental balanced translocation. A characteristic is that Cri-du-chat syndrome gets its name from the cry of affected babies which sounds like the meowing of a kitten. Some symptoms of Cri-du-chat syndrome is that babies usually have a low birth weight, behavior problems, excessive amounts of drooling, constipation, widely set eyes, low-set ears, small jaw, rounded face, and speech problems. Some gens in chromosome 5 are growth, eye movemoent, and movement. This syndrome is also known as " chromosome 5q deletion syndrome" and "Cat cry syndrome".The life expectancy of people with this disorder is normal and in 1967 we had 34 cases of cri-du-chat syndrome in the US,but sice then the numbers dropped, and in todays time(2011) we only had 12 cases. Some extra facts about this disorder are that the chromosome usually breaks while the sperm or the egg gametes are developing, there is no specific treatment for this syndrome, and both parents should have genetic counseling to see if there is a change in chromosome 5. References: Wikipedia online, Utah.edu, Gopubmed.org, and Websters Dictionary.