Dwarfism is sex-linked because the trait is found on sex chromosomes. Dwarfism is a dominant allele while normal growth is recessive. Therefore someone would have to had inherited both of the different alleles for this gene to get dwarfism. |
The FGFR3 gene codes for a protein called fibroblast growth factor receptor. The mutation of this gene on our DNA causes the growth disruptions that occur because of Achondroplasia. |