Esraa Mousa2, Samir Zahkok1, Nehal Abo-Elnaga2, Amel F. M. Ismail3,, 1Department of Zoology, Faculty of Science, Al-Azhar University and director of Genetic Engineering Center, 2 Department of Zoology, Faculty of Science, Al-Azhar University (For Girls), 3Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT).P.O. Box 29, Zip Code 11371 Atomic Energy Authority, Nasr City, Cairo, Egypt., Egypt