Mutations in the MT-CYB gene found in mitochondrial DNA can cause mitochondrial complex III deficiency. When caused by mutations in this gene, the condition is usually characterized by muscle weakness (myopathy) and pain, especially during exercise (exercise intolerance).
Hejazi Arabic, also known as Western Arabian Arabic, is a variant of the Arabic language spoken predominantly in the western region of Saudi Arabia. The language is spoken by approximately 8 million Saudi nationals, as of the last census.
Arabic is mainly spoken in the Middle East, and there are different dialects. Egyptian Arabic is different, but not much, from Arabic spoken in Saudi Arabia. Even in mostly Ar â¦ abic speaking counties in the Middle East and North Africa, the dialect, and accent differs.he official language of Brazil is Portuguese. Native languages still existing include Guarani Mbya, MbyÃ¡, Wajapi, WajÃ£pi, tapirape TapirapÃ© (tuyuka and). parintintin among others