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.
The earliest surviving texts in Proto-Arabic, or Ancient North Arabian, are the Hasaean inscriptions of eastern Saudi Arabia, from the 8th century BC, written not in the modern Arabic alphabet, nor in its Nabataean ancestor, but in variants of theepigraphic South Arabian musnad.here are many forms of Arabic spoken in the Middle East, but Arabic as a written language does not vary at all from society to society: written Arabic is referred to as Class â¦ ical Arabic and is not commonly spoken.