TS65Dn mice share many of the genes found on this structure.
TS65Dn mice share many of the genes found on this structure. The most common form of ALS is caused by a defect of this genetic structure, since it encodes the superoxide dismutase SOD1. Because the amyloid precursor protein is encoded by this structure, over-expression from it nearly always causes Alzheimer's disease. This genetic structure found in all humans is the smallest object observed in a Giemsa stain. It acquires an extra (*) long arm in the most common Robertsonian translocation. A disease of this structure is often accompanied by small white spots on the irises and a flat face. Aneuploidy of this structure, as seen in a karyotype, leads to the most common mental retardation in children. For 10 points, name this chromosome that is trisomic in Down Syndrome.
TS65Dn mice share many of the genes found on this structure.
chromosome 21 [or Hsa21]