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Agarose gel electrophoresis is a method of gel electrophoresis used in biochemistry, molecular biology, genetics, and clinical chemistry to separate a mixed population of macromolecules such as DNA or proteins in a matrix of agarose, one of the two main components of agar. The proteins may be separated by charge and/or size (isoelectric focusing agarose electrophoresis is essentially size independent), and the DNA and RNA fragments by length.
The Arabs (عَرَب, DIN 31635: DIN, Arabic pronunciation: ˈʕa.rab), also known as Arab people (الشَّعْبَ الْعَرَبِيُّ), are an ethnic group mainly inhabiting the Arab world in West Asia and North Africa, which formally denotes the "Arab homeland". Moreover, a significant Arab diaspora is present in various parts of the world. According to the Abrahamic tradition, Arabs are descendants of Abraham through his son Ishmael. Islamic sources further propose that Abraham brought Hagar and Ishmael to Mecca.