13 “And of the son of the maid I will make a nation also, because he is your descendant.” 14 So Abraham rose early in the morning and took bread and a skin of water and gave them to Hagar, putting them on her shoulder, and gave her the boy, and sent her away. And she departed and wandered about in the wilderness of Beersheba.
15 When the water in the skin was used up, she left the boy under one of the bushes. 16 Then she went and sat down opposite him, about a bowshot away, for she said, “Do not let me see the boy die.” And she sat opposite him, and lifted up her voice and wept. 17 God heard the lad crying; and the angel of God called to Hagar from heaven and said to her, “What is the matter with you, Hagar? Do not fear, for God has heard the voice of the lad where he is. 18 “Arise, lift up the lad, and hold him by the hand, for I will make a great nation of him.” 19 Then God opened her eyes and she saw a well of water; and she went and filled the skin with water and gave the lad a drink.
20 God was with the lad, and he grew; and he lived in the wilderness and became an archer. 21 He lived in the wilderness of Paran, and his mother took a wife for him from the land of Egypt.
http://foundationstone.com.au/HtmlSupport/WebPage/semiticGenetics.html
These variant spellings are in DNA that is not involved in the genes and therefore has no effect on the body. But the type and abundance of the lineages in each population serve as genetic signature by which to compare different populations.
Based on these variations, Dr. Hammer identified 19 variations in the Y chromosome family tree.
The ancestral Middle East population from which both Arabs and Jews are descended was a mixture of men from eight of these lineages.
Among major contributors to the ancestral Arab-Jewish population were men who carried what Dr. Hammer calls the “Med” lineage. This Y chromosome is found all round the Mediterranean and in Europe and may have been spread by the Neolithic inventors of agriculture or perhaps by the voyages of sea-going people like the Phoenicians.