The outer circle of stars shall be so arranged that one star shall appear directly in the middle at the top of the circle, and the word Indiana shall be placed in a half circle over and above the star representing Indiana and midway between it and the star in the center above it.
Mutations in either nuclear DNA (nDNA) or mitochondrial DNA (mtDNA) can cause mitochondrial disease. Nuclear DNA is packaged into structures called chromosomesâ22 pairs of non-sex related chromosomes (called autosomes) and a single pair of sex chromosomes (XX in females and XY in males).
Huntington disease-caused by mutations in the HTT gene. The inherited mutation that causes Huntington disease is known as a CAG trinucleotide repeat expansion. This mutation increases the size of the CAG segment in the HTT gene. People with Huntington disease have 36 to more than 120 CAG repeats.