Achondroplasia is the most common kind of bone disorder. It causes dwarfism- (condition that makes people small.)
It is a defect in cartilage turing into bone.

http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002544

CAUSES-Their are two possible causes of dwarfism 1 is genetic mutation of the fibroblast growth factor receptor 3(FGFR3), 2nd is you can also get it through a new mutation of the FGFR3 gene or you can inherit the alternated gene form your parents. Majority of the gene is through a gene mutation.
http://bones.emedtv.com/achondroplasia/achondroplasia-causes.html

SYMPTONS-is a bone growth disorder, the cartliage has difficulty converting to bone for people with the disease, especially in the longer bones.

Another sign is an average-sized trunk (chest, stomach), a large head, and short legs and arms.

There has been problems with a demormity of the spine, uneven limbs strengths.

http://bones.emedtv.com/achondroplasia/what-are-the-symptoms-of-achondroplasia.html
http://www.healthline.com/channel/achondroplasia_symptoms

Treatments- There is no treatment for this disorder, but other conditions caused by this disorder can be treated. (stenosis-hardening of the spinal fluid. and spinal cord compression.)
http://health.nytimes.com/health/guides/disease/achondroplasia/overview.htmlexternal image Achondroplasia.png

History- Oldest known disorder but the gene for it was not found until 1994. It was present in ancient Egypt and people with it were used as inspiration for art-(they were the subject of art.) It was seen as activites of demons, punishment by the gods, and movement of the stars and moon.
http://www.scumdoctor.com/disease-prevention/genetic-disorders/achondroplasia/History-Of-Achondroplasia.html

Mutations- People with this have average/regular sized parents. In the majority of cases it's a new mutation in the FGFR3 gene. Scientists still do not know why, when and how this mutation occured.
http://bones.emedtv.com/achondroplasia/achondroplasia-causes.html

Life Time: People with this disease can live for a long time. They will need to make codominations for them but can live long lives while they are very healthy. If a baby has two the two sets of this then they only have a few months to live.
http://www.wellness.com/reference/conditions/achondroplasia/

external image 3mutations.GIFexternal image Inheritanceofachondroplasia1-3-5-1-4-2-1-1-1-3-0.jpg