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.
Home > Country Guides > United Arab Emirates (UAE) The official national language in Abu Dhabi is Arabic, spoken widely among the native Arab community. The high concentration of expatriates from the Indian subcontinent has made Hindi, Urdu and several other languages from the region like Malayalam also fairly common.