Wednesday, February 18, 2009
How does a person inherit Dwarfism? Dominant or Recessive? Genetic or Chromosomal?
Dwarfism is a inherited mainly by a mutation in the fibroblast growth factor receptor in gene 3, this mutation inhibits bone growth. Considering the fact that most people do not have the disease, dwarfism, would be recessive in families with no history of dwarfism.
But dwarfism is very commonly passed down, from parents to their children. In this genetic case dwarfism is an autosomal dominant disorder, caused by a faulty allele in a person genes. Being autosomal means that both males, and females can contract the mutation and contract the disease. Dominant is saying that in families with dwarfism in it's pedigree, in family history, it is more common that the offspring of the parents will have dwarfism.