70% of the cases of Dwarfism are attributed to Achondroplasia. This is an autosomal dominant disorder that is caused due to presence of abnormal allele in the genome. There is a mutation in the FGFR3 (fibroblast growth factor receptor gene 3). This gene acts as an inhibitor to bone growth. The symptoms of Dwarfism due to Achondroplasia are short limbs, increase in spinal curvature, distorted skull growth and average sized trunk.
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